<?xml version="1.0" encoding="UTF-8"?>
<!--

Documentation for LCL (Lazarus Component Library) and LazUtils (Lazarus 
Utilities) are published under the Creative Commons Attribution-ShareAlike 4.0 
International public license.

https://creativecommons.org/licenses/by-sa/4.0/legalcode.txt
https://gitlab.com/freepascal.org/lazarus/lazarus/-/blob/main/docs/cc-by-sa-4-0.txt

Copyright (c) 1997-2025, by the Lazarus Development Team.

-->
<fpdoc-descriptions>
<package name="lcl">
<!--
====================================================================
MaskEdit
====================================================================
-->
<module name="MaskEdit">
<short>
Defines classes, types, and constants used to implement a masked edit control.
</short>
<descr>
<p>
<file>maskedit.pp</file> implements an masked edit control which can be used 
to format, validate, or obscure the text entered in the control. The 
following components are added to the Lazarus IDE component palette:
</p>
<p>
<b>Additional</b> Tab
</p>
<ul>
<li>TMaskEdit</li>
</ul>
<p>
<file>maskedit.pp</file> is part of the Lazarus Component Library (<b>LCL</b>).
</p>
</descr>

<!-- unresolved references -->
<element name="Classes"/>
<element name="SysUtils"/>
<element name="LResources"/>
<element name="Forms"/>
<element name="Controls"/>
<element name="Graphics"/>
<element name="Dialogs"/>
<element name="ExtCtrls"/>
<element name="StdCtrls"/>
<element name="LMessages"/>
<element name="Clipbrd"/>
<element name="LCLType"/>
<element name="LCLProc"/>
<element name="LCLStrConsts"/>
<element name="LazUtf8"/>

<element name="cMask_SpecialChar">
<short>After this you can set an arbitrary char.</short>
<descr/>
<seealso/>
</element>

<element name="cMask_UpperCase">
<short>After this the chars are in upper case.</short>
<descr/>
<seealso/>
</element>

<element name="cMask_LowerCase">
<short>After this the chars are in lower case.</short>
<descr/>
<seealso/>
</element>

<element name="cMask_Letter">
<short>Can contain an optional letter only.</short>
<descr/>
<seealso/>
</element>

<element name="cMask_LetterFixed">
<short>Must contain a letter only.</short>
<descr/>
<seealso/>
</element>

<element name="cMask_AlphaNum">
<short>An optional alphanumeric character.</short>
<descr>['A'..'Z','a..'z','0'..'9']</descr>
<seealso/>
</element>

<element name="cMask_AlphaNumFixed">
<short>A required alphanumeric character.</short>
<descr>['A'..'Z','a..'z','0'..'9']</descr>
<seealso/>
</element>

<element name="cMask_AllChars">
<short>An optional UTF-8 character.</short>
<descr>Any UTF-8 character in the range #32 to #255</descr>
<seealso/>
</element>

<element name="cMask_AllCharsFixed">
<short>A required UTF-8 character.</short>
<descr>Any UTF-8 character in the range #32 to #255</descr>
<seealso/>
</element>

<element name="cMask_Number">
<short>An optional numeric character.</short>
<descr>In the range '0' to '9'</descr>
<seealso/>
</element>

<element name="cMask_NumberFixed">
<short>A required numeric character.</short>
<descr>In the range '0' to '9'</descr>
<seealso/>
</element>

<element name="cMask_NumberPlusMin">
<short>An optional numeric or sign character.</short>
<descr>Includes the characters: 0,1,2,3,4,5,6,7,8,9,+, and -</descr>
<seealso/>
</element>

<element name="cMask_HourSeparator">
<short>Inserts the hour separator char.</short>
<descr/>
<seealso/>
</element>

<element name="cMask_DateSeparator">
<short>Inserts the date separator character.</short>
<descr/>
<seealso/>
</element>

<element name="cMask_Hex">
<short>An optional hexadecimal character.</short>
<descr> (['0'..'9','a'..'f']). A Lazarus extension, not supported in 
Delphi.</descr>
<seealso/>
</element>

<element name="cMask_HexFixed">
<short>A required hexadecimal character.</short>
<descr> (['0'..'9','a'..'f']). A Lazarus extension, not supported in 
Delphi.</descr>
<seealso/>
</element>

<element name="cMask_Binary">
<short>An optional binary character.</short>
<descr>['0'..'1']. A Lazarus extension, not supported in Delphi.</descr>
<seealso/>
</element>

<element name="cMask_BinaryFixed">
<short>A required binary character.</short>
<descr>['0'..'1']. A Lazarus extension, not supported in Delphi.</descr>
<seealso/>
</element>

<element name="cMask_NoLeadingBlanks">
<short>Causes leading blanks to be trimmed from the value.</short>
<descr>Trailing blanks are trimmed by default.</descr>
<seealso/>
</element>

<element name="cMask_SetStart">
<short>Indicates the start of a set definition.</short>
<descr>
<p>
Uses notation like:
</p>
<dl>
<dt>[abc]</dt>
<dd>Set with the characters 'a'. 'b', and 'c'.</dd>
<dt>[a-z]</dt>
<dd>Equivalent to the ['a'..'z'] notation in Pascal.</dd>
</dl>
<p>
In the current implementation, sets are always case-sensitive and can contain 
only ASCII characters.
</p>
</descr>
<seealso/>
</element>

<element name="cMask_SetEnd">
<short>Indicates the end of a set definition.</short>
<descr/>
<seealso/>
</element>

<element name="cMask_SetNegate">
<short>Negates the following set definition.</short>
<descr>
<p>
Common usage:
</p>
<dl>
<dt>[!abc]</dt>
<dd>Any character not in the set ['a','b','c'].</dd>
</dl>
</descr>
<seealso/>
</element>

<element name="cMask_SetOptional">
<short>
Indicates a set of optional characters allowed for a position in a mask.
</short>
<descr>
<p>
Common usage:
</p>
<dl>
<dt>[|abc]</dt>
<dd>
Character must be 'a', 'b', 'c' or a blank (space). Only interpreted as such 
if set is not negated using cMask_SetNegate.
</dd>
</dl>
</descr>
<seealso/>
</element>

<element name="cMask_SetRange">
<short>
Indicates that the character set definition uses a range of character values.
</short>
<descr/>
<seealso/>
</element>

<element name="DefaultBlank">
<short>Represents a blank character value in a mask.</short>
<descr>Can be changed at run-time.</descr>
<seealso/>
</element>

<element name="MaskFieldSeparator">
<short>Delimiter used between fields in a mask.</short>
<descr>Can be changed at run-time.</descr>
<seealso/>
</element>

<element name="MaskNoSave">
<short>Represents a character that is not stored in a mask.</short>
<descr>Can be changed at run-time.</descr>
<seealso/>
</element>

<element name="TMaskedType">
<short>Enumeration with values representing mask character types.</short>
<descr>
<p>
<var>TMaskType</var> is an enumerated type which contains values representing 
mask character types used in TCustomMaskEdit and TMaskEdit. Mask character 
types control the letters, numbers, literals, space characters, and trimming 
options allowed for each position in a masked edit control.
</p>
<p>
TMaskType values are stored in the TInternalMask type, and used in the 
implementation of TCustomMaskEdit.
</p>
</descr>
<seealso>
<link id="TInternalMask"/>
<link id="TCustomMaskEdit.EditMask"/>
</seealso>
</element>
<element name="TMaskedType.Char_IsLiteral">
<short>Character is a literal.</short>
</element>
<element name="TMaskedType.Char_Number">
<short>Character is an optional numeric value 0..9.</short>
</element>
<element name="TMaskedType.Char_NumberFixed">
<short>Character is a required numeric value 0..9.</short>
</element>
<element name="TMaskedType.Char_NumberPlusMin">
<short>Character is an optional numeric value 0..9, +, -</short>
</element>
<element name="TMaskedType.Char_Letter">
<short>Character is an optional alphabetic value.</short>
</element>
<element name="TMaskedType.Char_LetterFixed">
<short>Character is a required alphabetic value.</short>
</element>
<element name="TMaskedType.Char_LetterUpCase">
<short>Character is an optional uppercase alphabetic value.</short>
</element>
<element name="TMaskedType.Char_LetterDownCase">
<short>Character is an optional lowercase alphabetic value.</short>
</element>
<element name="TMaskedType.Char_LetterFixedUpCase">
<short>Character is a required uppercase alphabetic value.</short>
</element>
<element name="TMaskedType.Char_LetterFixedDownCase">
<short>Character is a required lowercase alphabetic value.</short>
</element>
<element name="TMaskedType.Char_AlphaNum">
<short>Character is an optional alphabetic or numeric value.</short>
</element>
<element name="TMaskedType.Char_AlphaNumFixed">
<short>Character is a required alphabetic or numeric value.</short>
</element>
<element name="TMaskedType.Char_AlphaNumUpCase">
<short>Character is an optional uppercase alphabetic or numeric value.</short>
</element>
<element name="TMaskedType.Char_AlphaNumDownCase">
<short>Character is an optional lowercase alphabetic or numeric value.</short>
</element>
<element name="TMaskedType.Char_AlphaNumFixedUpCase">
<short>Character is a required uppercase alphabetic or numeric value.</short>
</element>
<element name="TMaskedType.Char_AlphaNumFixedDownCase">
<short>Character is a required lowercase alphabetic or numeric value.</short>
</element>
<element name="TMaskedType.Char_All">
<short>Any optional UTF-8 character.</short>
</element>
<element name="TMaskedType.Char_AllFixed">
<short>Any required UTF-8 character.</short>
</element>
<element name="TMaskedType.Char_AllUpCase">
<short>Any optional uppercase UTF-8 character.</short>
</element>
<element name="TMaskedType.Char_AllDownCase">
<short>Any optional lowercase UTF-8 character.</short>
</element>
<element name="TMaskedType.Char_AllFixedUpCase">
<short>Any required uppercase UTF-8 character.</short>
</element>
<element name="TMaskedType.Char_AllFixedDownCase">
<short>Any required lowercase UTF-8 character.</short>
</element>
<element name="TMaskedType.Char_HourSeparator">
<short>Character is the time separator character.</short>
</element>
<element name="TMaskedType.Char_DateSeparator">
<short>Character is the date separator character.</short>
</element>
<element name="TMaskedType.Char_Hex">
<short>Character is an optional hexadecimal digit.</short>
<descr>
Lazarus extension, not supported by Delphi.
</descr>
</element>
<element name="TMaskedType.Char_HexFixed">
<short>Character is a required hexadecimal digit.</short>
<descr>Lazarus extension, not supported by Delphi.</descr>
</element>
<element name="TMaskedType.Char_HexUpCase">
<short>Character is an optional uppercase hexadecimal digit.</short>
<descr>Lazarus extension, not supported by Delphi.</descr>
</element>
<element name="TMaskedType.Char_HexDownCase">
<short>Character is an optional lowercase hexadecimal digit.</short>
<descr>Lazarus extension, not supported by Delphi.</descr>
</element>
<element name="TMaskedType.Char_HexFixedUpCase">
<short>Character is a required uppercase hexadecimal digit.</short>
<descr>Lazarus extension, not supported by Delphi.</descr>
</element>
<element name="TMaskedType.Char_HexFixedDownCase">
<short>Character is a required lowercase hexadecimal digit.</short>
<descr>Lazarus extension, not supported by Delphi.</descr>
</element>
<element name="TMaskedType.Char_Binary">
<short>Character is an optional binary value 0..1.</short>
<descr>Lazarus extension, not supported by Delphi.</descr>
</element>
<element name="TMaskedType.Char_BinaryFixed">
<short>Character is a required binary value 0..1.</short>
<descr>Lazarus extension, not supported by Delphi.</descr>
</element>
<element name="TMaskType.Char_Set">
<short>Optional character must be in the defined set or space.</short>
<descr>Lazarus extension, not supported by Delphi</descr>
<seealso/>
</element>
<element name="TMaskType.Char_SetFixed">
<short>Required character must be in the defined set.</short>
<descr></descr>
<seealso/>
</element>
<element name="TMaskType.Char_SetNegateFixed">
<short>Required character must NOT be in the defined set.</short>
<descr></descr>
<seealso/>
</element>

<element name="TIntMaskRec">
<short>
Represents the type and literal used for a character in an edit mask.
</short>
<descr>
<p>
<var>TIntMaskRec</var> is a <var>record</var> type with members that 
represent the types and literal used for a character in 
<var>TCustomMaskEdit</var>. TIntMaskRec instances are stored in the 
<var>TInternalMask</var> array type, and used in the implementation of the 
TCustomMaskEdit control.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.EditMask"/>
<link id="TCustomMaskEdit.IsMasked"/>
<link id="TCustomMaskEdit.DisableMask"/>
<link id="TCustomMaskEdit.RestoreMask"/>
</seealso>
</element>
<element name="TIntMaskRec.MaskType">
<short>Identifies the type for the mask character.</short>
</element>
<element name="TIntMaskRec.Literal">
<short>Contains the literal displayed for the mask character.</short>
</element>

<element name="TInternalMask">
<short>
Array type used to represent edit mask symbols in TCustomMaskEdit.
</short>
<descr>
<p>
<var>TInternalMask</var> is an array type which contains up to 255 
<var>TIntMaskRec</var> values representing mask characters used in a 
<var>TCustomMaskEdit</var> control. It is used to implement internal members 
in TCustomMaskEdit, and realized using its <var>EditMask</var> property.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.EditMask"/>
<link id="TIntMaskRec"/>
</seealso>
</element>

<element name="TMaskEditTrimType">
<short>Controls how the value in a masked edit control is trimmed.</short>
<descr>
<p>
<var>TMaskEditTrimType</var> is an enumerated type with values that control 
if / how the text in <var>TCustomMaskEdit</var> is trimmed.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.EditMask"/>
<link id="TCustomMaskEdit.DisableMask"/>
<link id="TCustomMaskEdit.ApplyMaskToText"/>
</seealso>
</element>
<element name="TMaskEditTrimType.metTrimLeft">
<short>Trims leading spaces from the value for a masked edit control.</short>
</element>
<element name="TMaskEditTrimType.metTrimRight">
<short>
Trims trailing spaces from the value for a masked edit control; this is the 
default action in TCustomMaskEdit.
</short>
</element>

<element name="TMaskEditValidationErrorMode">
<short>
Represents the action taken for an error in TMaskEdit validation.
</short>
<descr>
<p>
<var>TMaskEditValidationErrorMode</var> is an enumerated type with values 
that represent the action taken when a error occurs while validating the 
value in <var>TCustomMaskEdit</var> and descendants. It is the type used to 
implement the <var>ValidationErrorMode</var> property in TCustomMaskEdit.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.ValidationErrorMode"/>
<link id="TCustomMaskEdit.OnValidationError"/>
</seealso>
</element>
<element name="TMaskEditValidationErrorMode.mvemException">
<short>
Causes an exception to be raised for a validation error in TMaskEdit.
</short>
</element>
<element name="TMaskEditValidationErrorMode.mvemEvent">
<short>
Causes the OnValidationError event handler to be signalled for a validation 
error in TMaskEdit.
</short>
</element>

<element name="EDBEditError">
<short>Exception class raised for an error in a masked edit control.</short>
<descr>
<p>
Raised in the <var>TCustomMaskEdit.ValidateEdit</var> method when exiting the 
edit control where its text is in an invalid state for its edit mask.
</p>
<remark>
Despite the name, this exception has nothing to do with a database error.
</remark>
</descr>
<seealso/>
</element>

<element name="EInvalidEditMask">
<short>
Exception type raised for an invalid mask value in an edit mask.
</short>
<descr>
<p>
Indicates that the content in <var>EditMask</var> is not a valid edit mask 
expression. Raised when a value is assigned to the EditMask property. 
Generally indicates that an invalid set declaration has been used in the edit 
mask.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.EditMask"/>
</seealso>
</element>

<element name="EInvalidUtf8">
<short>Ancestor for UTF-8 exceptions.</short>
<descr>
<p>
<var>EInvalidUtf8</var> is an <var>Exception</var> descendant that implements 
the ancestor for exceptions that occur for UTF-8-encoded content.
</p>
</descr>
<seealso>
<link id="EInvalidCodePoint"/>
</seealso>
</element>

<element name="EInvalidCodePoint">
<short>
Exception raised when an error occurs while setting a UTF-8 Code Point in a 
String.
</short>
<descr>
<p>
<var>EInvalidCodePoint</var> is an <var>EInvalidUtf8</var> descendant that 
implements the Exception raised when an error occurs while setting a UTF-8 
Code Point in a String. The exception message contains the constant value in 
<var>SInvalidCodePoint</var>.
</p>
<p>
Used in the <var>SetCodePoint</var> routine in the implementation section for 
the unit.
</p>
</descr>
<seealso>
<link id="SInvalidCodePoint"/>
</seealso>
</element>

<element name="SInvalidCodePoint">
<short>Message displayed in the EInvalidCodePoint exception.</short>
<descr/>
<seealso>
<link id="EInvalidUtf8"/>
</seealso>
</element>

<element name="SIndexOutOfRangeForFMask">
<short>
Exception message used when a position in the internal mask is not valid.
</short>
<descr>
</descr>
<seealso>
<link id="ERangeError"/>
</seealso>
</element>

<element name="SFoundChar_Invalid">
<short>Exception message used when an invalid mask character is found.</short>
<descr/>
<seealso>
<link id="EDBEditError"/>
</seealso>
</element>

<element name="SUnclosedSet">
<short>
Exception message used when an unclosed set is found in an edit mask.
</short>
<descr/>
<seealso>
<link id="EInvalidEditMask"/>
</seealso>
</element>

<element name="SIllegalCharInSet">
<short>
Exception message used when a mask character not in the ASCII character set 
is used.
</short>
<descr/>
<seealso>
<link id="EInvalidEditMask"/>
</seealso>
</element>

<element name="SEmptySet">
<short>
Exception message used when an empty set is specified in an edit mask.
</short>
<descr/>
<seealso>
<link id="EInvalidEditMask"/>
</seealso>
</element>

<element name="SIllegalRangeChar">
<short>
Exception message used when more than one set range is used in an edit mask.
</short>
<descr/>
<seealso>
<link id="EInvalidEditMask"/>
</seealso>
</element>

<element name="TCustomMaskEdit">
<short>The base class for TMaskEdit.</short>
<descr>
<p>
<var>TCustomMaskEdit</var> is a TCustomEdit descendant, and the base class 
for <var>TMaskEdit</var>. TCustomMaskEdit provides an Edit box with masking 
features for characters displayed (or hidden) in the control.
</p>
<remark>
FOR ANYONE WHO CARES TO FIX / ENHANCE THIS CODE:
</remark>
<p>
Since we want total control over anything that is done to the text in the 
control, we have to take into consideration the fact that currently we cannot 
prevent cutting/pasting/clearing or dragging selected text in the control. 
These operations are handled by the OS, and text is changed before we can 
prevent it. Not all widgetsets currently handle the messages for 
cut/paste/clear. Actually, we would like to have a LM_BEFORE_PASTE (etc.) 
message... If we allow the OS to cut/clear/paste etc. A situation can occur 
where mask-literals in the control are changed to random characters (which 
cannot be undone), or text is shorter or larger than the editmask calls for, 
which again cannot be undone.
</p>
<p>
So, as a horrible hack, I decided to only allow changing the text if we coded 
this change ourself. This is done by setting the FChangeAllowed field to 
<b>True</b> before any write action (in RealSetTextWhileMasked() ). We try to 
intercept the messages for cut/paste/copy/clear and perform the appropriate 
actions instead. If this fails, then in TextChanged we check and will see 
that FChangeAllowed = False and we will undo the changes made.
</p>
<p>
To make this undo possible, it is necessary to set FCurrentText every time 
you set the text in the control! This is achieved in RealSetTextWhileMasked() 
only.
</p>
<remark>
It is unsafe to make a call to RealSetText unless done so via 
RealSetTextWhileMasked!!!
</remark>
<p>
Bart Broersma, January 2009
</p>
</descr>
</element>

<element name="TCustomMaskEdit.FRealMask">
<short>Real mask inserted.</short>
</element>
<element name="TCustomMaskEdit.FMask">
<short>Actual internal mask.</short>
</element>
<element name="TCustomMaskEdit.FMaskLength">
<short>Length of the internal mask.</short>
</element>
<element name="TCustomMaskEdit.FFirstFreePos">
<short>First position where user can enter text (1-based).</short>
</element>
<element name="TCustomMaskEdit.FMaskSave">
<short>Save mask as part of the data?</short>
</element>
<element name="TCustomMaskEdit.FTrimType">
<short>Trim leading or trailing spaces in GetText.</short>
</element>
<element name="TCustomMaskEdit.FSpaceChar">
<short>Character used for space characters (default value is '_').</short>
</element>
<element name="TCustomMaskEdit.FCurrentText">
<short>FCurrentText is our backup. See the notes for TCustomMaskEdit.</short>
</element>
<element name="TCustomMaskEdit.FTextOnEnter">
<short>Text when user enters the control, used for Reset().</short>
</element>
<element name="TCustomMaskEdit.FCursorPos">
<short>Current caret position (0-based).</short>
</element>
<element name="TCustomMaskEdit.FChangeAllowed">
<short>
Indicates if text can be changed by the OS (copy/cut/paste/clear via the 
context menu).
</short>
</element>
<element name="TCustomMaskEdit.FInitialText">
<short>
Value for the text set in the form designer (must be handled in Loaded).
</short>
</element>
<element name="TCustomMaskEdit.FInitialMask">
<short>EditMask set in the form designer (must be handled in Loaded).</short>
</element>
<element name="TCustomMaskEdit.FSettingInitialText">
<short>
Flag which indicates if the control value is being assigned for the first 
time.
</short>
</element>
<element name="TCustomMaskEdit.FValidationFailed">
<short>Flag used in DoEnter. Set to mvemException by default.</short>
</element>
<element name="TCustomMaskEdit.FMaskIsPushed">
<short>
<b>True</b> when the internal mask has been saved in DisableMask.
</short>
</element>
<element name="TCustomMaskEdit.FSavedMask">
<short>Saved internal mask.</short>
</element>
<element name="TCustomMaskEdit.FSavedMaskLength">
<short>Length of the saved internal mask.</short>
</element>
<element name="TCustomMaskEdit.FTextChangedBySetText">
<short>
Used with FInRealSetTextWhileMasked to determine real value for Modified.
</short>
</element>
<element name="TCustomMaskEdit.FInRealSetTextWhileMasked">
<short>
Used with FTextChangedBySetText to determine real value for Modified.
</short>
</element>

<element name="TCustomMaskEdit.ClearInternalMask">
<short>Fills the specified mask with Null characters (decimal 0).</short>
<descr/>
<seealso/>
</element>
<element name="TCustomMaskEdit.ClearInternalMask.AMask">
<short>Mask updated in the method.</short>
</element>
<element name="TCustomMaskEdit.ClearInternalMask.ALengthIndicator">
<short>Set to zero (0) to indicate that the mask is empty.</short>
</element>

<element name="TCustomMaskEdit.AddToMask">
<short>
Appends the specified mask character or literal to the internal mask in the 
control.
</short>
<descr>
<p>
<var>AddToMask</var> is an overloaded procedure used to append a mask 
character to the internal mask for the edit control. The overloaded variants 
allow the mask character to be specified as a <var>TMaskedType</var> 
enumeration value or a UTF-8-encoded character literal.
</p>
<p>
AddToMask increments the length counter for the internal mask, and stores the 
specified value in the <var>TInternalMask</var> instance. When 
<var>ALiteral</var> is used for the mask character, the 
<var>TIntMaskRec.MaskType</var> member is set to <var>Char_IsLiteral</var>. 
When <var>AMaskType</var> is used, the <var>TIntMaskRec.Literal</var> member 
is set to an empty string (<b>''</b>).
</p>
<p>
AddToMask is called when a new value is assigned to the <var>EditMask</var> 
property and the internal TInternalMask member is cleared and populated.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.EditMask"/>
<link id="TMaskedType"/>
<link id="TInternalMask"/>
<link id="TIntMaskRec"/>
</seealso>
</element>
<element name="TCustomMaskEdit.AddToMask.ALiteral">
<short>
UTF-8 character literal appended to the mask for the edit control.
</short>
</element>
<element name="TCustomMaskEdit.AddToMask.AMaskType">
<short>Enumeration value representing the mask character class.</short>
</element>

<element name="TCustomMaskEdit.GetModified">
<short>Sets the value for the Modified property.</short>
<descr/>
<seealso>
<link id="TCustomMaskEdit.Modified"/>
</seealso>
</element>
<element name="TCustomMaskEdit.GetModified.Result">
<short>Value for the property.</short>
</element>

<element name="TCustomMaskEdit.GetMask">
<short>Gets values in the internal FMask member.</short>
</element>
<element name="TCustomMaskEdit.GetMask.Result"/>
<element name="TCustomMaskEdit.GetMask.Index"/>

<element name="TCustomMaskEdit.SetEditMask">
<short>Sets the value for the EditMask property.</short>
<descr>
<p>
Re-initializes the internal TInternalMask instance with the mask character 
classes and literals used in the EditMask.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.EditMask"/>
<link id="TCustomMaskEdit.RealGetText"/>
</seealso>
</element>
<element name="TCustomMaskEdit.SetEditMask.Value">
<short>New value for the EditMask property.</short>
</element>

<element name="TCustomMaskEdit.ParseSet">
<short>Parses set notation found in the EditMask for the control.</short>
</element>
<element name="TCustomMaskEdit.ParseSet.S">
<short>Value examined in the method.</short>
</element>
<element name="TCustomMaskEdit.ParseSet.i">
<short>
Position for UTF-8 codepoint with the set notation in the specified value.
</short>
</element>
<element name="TCustomMaskEdit.ParseSet.SUILen">
<short>Length of the value examined in the method.</short>
</element>
<element name="TCustomMaskEdit.ParseSet.ACharSet">
<short>Set of characters found in the set notation.</short>
</element>
<element name="TCustomMaskEdit.ParseSet.IsNegative">
<short><b>True</b> if the set has a negate operator.</short>
</element>
<element name="TCustomMaskEdit.ParseSet.IsOptional">
<short>
<b>True</b> if the character position for the set is optional, <b>False</b> 
when it is required.
</short>
</element>

<element name="TCustomMaskEdit.GetIsMasked">
<short>Gets the value for the IsMasked property.</short>
<descr/>
<seealso>
<link id="TCustomMaskEdit.IsMasked"/>
</seealso>
</element>
<element name="TCustomMaskEdit.GetIsMasked.Result">
<short>Value for the property.</short>
</element>

<element name="TCustomMaskEdit.SetModified">
<short>Sets the value for the Modified property.</short>
<descr/>
<seealso>
<link ide="TCustomMaskEdit.Modified"/>
</seealso>
</element>
<element name="TCustomMaskEdit.SetModified.AValue">
<short>New value for the property.</short>
</element>

<element name="TCustomMaskEdit.SetSpaceChar">
<short>Sets the value for the SpaceChar property.</short>
<descr/>
<seealso>
<link id="TCustomMaskEdit.SpaceChar"/>
</seealso>
</element>
<element name="TCustomMaskEdit.SetSpaceChar.Value">
<short>New value for the property.</short>
</element>

<element name="TCustomMaskEdit.SetCursorPos">
<short>
Sets the cursor position, and selects the character in the control.
</short>
<descr>
<p>
<var>SetCursorPos</var> is a procedure used to set the cursor or current 
caret position in the edit control. An internal member contains the offset in 
the control where the cursor is positioned. The cursor position cannot exceed 
the length of the mask in the control.
</p>
<remark>
No actions are performed in the method at design-time.
</remark>
<p>
SetCursorPos is used in the implementation of methods which respond to 
keyboard or mouse navigation, or when the value in the control is changed 
and/or validated.
</p>
</descr>
<seealso/>
</element>

<element name="TCustomMaskEdit.SelectNextChar">
<short>
Selects the next character in the edit control.
</short>
<descr>
<p>
<var>SelectNextChar</var> is a procedure used to move to and select the next 
character in the value for the edit control. Mask literals in the control 
value are skipped. SelectNextChar calls the <var>SetCursorPos</var> method to 
update the caret (or cursor) position for the control.
</p>
<p>
Used in the implementation of the <var>KeyDown</var> method.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.IsLiteral"/>
</seealso>
</element>

<element name="TCustomMaskEdit.SelectPrevChar">
<short>Selects the previous character in the edit control.</short>
<descr>
<p>
<var>SelectPrevChar</var> is a procedure used to move to and select the 
previous character in the value for the edit control. Mask literals in the 
control value are skipped. SelectPrevChar calls the <var>SetCursorPos</var> 
method to update the caret (or cursor) position for the control.
</p>
<p>
Used in the implementation of the <var>KeyDown</var> method.
</p>
</descr>
<seealso/>
</element>

<element name="TCustomMaskEdit.SelectFirstChar">
<short>Selects the first character in the edit control.</short>
<descr>
<p>
<var>SelectFirstChar</var> is a procedure used to move to and select the 
first character in the edit control. SelectFirstChar sets the value for the 
internal member used to track the cursor (or caret) position, and calls 
<var>SetCursorPos</var> to update the cursor in the control.
</p>
</descr>
<seealso/>
</element>

<element name="TCustomMaskEdit.GotoEnd">
<short>Moves the caret to the last position in the edit control.</short>
<descr>
<p>
<var>GotoEnd</var> is a procedure used to set the caret (or cursor) to the 
last position in the edit control. GotoEnd updates the internal member used 
to track the cursor position, and calls the <var>SetCursorPos</var> method to 
apply the cursor position to the control.
</p>
<p>
Used in the implementation of the <var>KeyDown</var> method.
</p>
</descr>
<seealso/>
</element>

<element name="TCustomMaskEdit.JumpToNextDot">
<short>
Moves to the next occurrence of the specified character in the value for the 
edit control.
</short>
<descr>
<p>
<var>JumpToNextDot</var> is a procedure used to move to the next occurrence 
of the character in <var>Dot</var> in the mask for the edit control. Dot must 
be included in the mask, and must occur after the current cursor position. 
Dot must contain either a Period ('.') or Comma (',') character; no actions 
are performed in the method when Dot contains another character value.
</p>
<p>
If a mask contains both Period and Comma characters, only the first character 
can be accesses using the method. A mask literal cannot appear after the 
requested occurrence of Dot, and the next occurrence cannot be the last 
character in the mask.
</p>
<p>
The cursor position is set to the next character after the mask literal, when 
allowed. JumpToNextDot calls the <var>SetCursorPos</var> method to update the 
caret position in the edit control.
</p>
<p>
JumpToNextDot is used in the implementation of the <var>HandleKeyPress</var> 
method.
</p>
</descr>
<seealso/>
</element>
<element name="TCustomMaskEdit.JumpToNextDot.Dot">
<short>Mask literal to locate in the edit mask for the control.</short>
</element>

<element name="TCustomMaskEdit.HasSelection">
<short>
Indicates if any characters are currently selected in the edit control.
</short>
<descr>
<p>
<var>HasSelection</var> is a <var>Boolean</var> function which indicates if 
any characters are currently selected in the edit control. The return value 
is <b>True</b> when <var>GetSelLength</var> returns a value greater than one 
(1).
</p>
</descr>
<seealso/>
</element>
<element name="TCustomMaskEdit.HasSelection.Result">
<short><b>True</b> when characters are selected at the caret position.</short>
</element>

<element name="TCustomMaskEdit.HasExtSelection">
<short>
Returns <b>True</b> if more than one (1) character is selected in the value 
for the control.
</short>
<descr>
<p>
Influences handling of the Backspace key. In addition, the 
<var>InsertChar</var> method will delete an extended selection prior to 
inserting a new character value.
</p>
</descr>
<seealso/>
</element>
<element name="TCustomMaskEdit.HasExtSelection.Result">
<short>
<b>True</b> when the current selection in the control is more than one 
character.
</short>
</element>

<element name="TCustomMaskEdit.IsLiteral">
<short>
Indicates whether the mask value at the specified position is a mask literal.
</short>
<descr>
<p>
<var>IsLiteral</var> is a <var>Boolean</var> function which indicates whether 
the Integer value in <var>Index</var> represents a mask literal which cannot 
be edited in the control.
</p>
<p>
The return value is <b>False</b> when the mask type for the character in 
Index is <b>not</b> one for the following TMaskType values:
</p>
<dl>
<dt>Char_IsLiteral</dt>
<dd>A mask literal.</dd>
<dt>Char_HourSeparator</dt>
<dd>The time separator character.</dd>
<dt>Char_DateSeparator</dt>
<dd>The date separator character.</dd>
</dl>
<p>
IsLiteral is used in the implementation of methods like 
<var>SetEditMask</var>, <var>SetSpaceChar</var>, <var>SelectNextChar</var>, 
<var>SelectPrevChar</var>, <var>JumpToNextDot</var>, and 
<var>SetEditText</var>.
</p>
</descr>
<seealso>
<link id="TMaskType"/>
</seealso>
</element>
<element name="TCustomMaskEdit.IsLiteral.Result">
<short><b>True</b> if the specified character is a mask literal.</short>
</element>
<element name="TCustomMaskEdit.IsLiteral.Index">
<short>Character position examined in the method.</short>
</element>

<element name="TCustomMaskEdit.TextIsValid">
<short>
Indicates whether the specified value is valid for the EditMask in the 
control.
</short>
<descr>
<p>
Returns <b>False</b> if the length of <var>Value</var> does not match the 
length for the edit mask, or when a UTF-8 Code Point in <var>Value</var> is 
not valid for the edit mask.
</p>
</descr>
<seealso>
</seealso>
</element>
<element name="TCustomMaskEdit.TextIsValid.Result">
<short><b>True</b> when the value is valid for the edit mask.</short>
</element>
<element name="TCustomMaskEdit.TextIsValid.Value">
<short>Value examined in the method.</short>
</element>

<element name="TCustomMaskEdit.CharMatchesMask">
<short>
Determines if a character in the control value is valid for the specified 
EditMask.
</short>
<descr>
<p>
<var>CharMatchesMask</var> is a <var>Boolean</var> function used to determine 
if a character in the value for the control is valid for its EditMask. 
<var>Ch</var> contains the UTF-8 character examined in the method.
</p>
<p>
<var>Position</var> contains the offset into the EditMask for the mask 
character compared in the method. Position is in the range 
<b>1..MaxLength</b>.
</p>
<p>
CharMatchesMask uses the internal TInternalMask instance to determine if the 
value in Ch matches the mask definition at the specified position. The return 
value is <b>True</b> when Ch contains a valid character value for the mask 
character type.
</p>
<p>
If an unrecognized mask character type is found in the in the EditMask, an 
<var>EDBEditError</var> exception is raised. It is not really a database 
exception; it's just an identifier, defined in this unit, with a confusingly 
unfortunate name.
</p>
<p>
CharMatchesMask is used in the implementation of the <var>TextIsValid</var> 
method.
</p>
</descr>
<errors>
Raises an EDBEditError exception if an invalid mask literal is used in the 
EditMask.
</errors>
<seealso>
<link id="TCustomMaskEdit.CharToMask"/>
<link id="TCustomMaskEdit.EditMask"/>
<link id="TCustomMaskEdit.ValidateEdit"/>
<link id="TMaskType"/>
<link id="EDBEditError"/>
</seealso>
</element>
<element name="TCustomMaskEdit.CharMatchesMask.Result">
<short>
<b>True</b> when the character value is valid for the corresponding position 
in the EditMask.
</short>
</element>
<element name="TCustomMaskEdit.CharMatchesMask.Ch">
<short>Character value examined in the method.</short>
</element>
<element name="TCustomMaskEdit.CharMatchesMask.Position">
<short>Offset into the edit mask for the character value.</short>
</element>

<element name="TCustomMaskEdit.ClearChar">
<short>
Clears a character which is not a literal at the specified Position.
</short>
<descr>
<p>
For Delphi compatibility, only literals remain.
</p>
<p>
ClearChar checks the <var>TMaskType</var> value for the character at the 
specified <var>Position</var>. The return value contains the hour separator, 
date separator, or literal value used for the mask character. Date and time 
separators use values from the DefaultFormatSettings variable in the RTL.
</p>
<p>
All other character values are replaced with the character designated in the 
<var>SpaceChar</var> property.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.ApplyMaskToText"/>
<link id="TCustomMaskEdit.Clear"/>
<link id="TCustomMaskEdit.DeleteSelected"/>
<link id="TCustomMaskEdit.InsertChar"/>
<link id="TCustomMaskEdit.SetEditText"/>
</seealso>
</element>
<element name="TCustomMaskEdit.ClearChar.Result">
<short>
Character displayed for a mask literal at the specified position.
</short>
</element>
<element name="TCustomMaskEdit.ClearChar.Position">
<short>Position in EditMask examined in the method.</short>
</element>

<element name="TCustomMaskEdit.RealSetTextWhileMasked">
<short>Sets the text in the control when a mask is in use.</short>
<descr>
<p>
<var>RealSetTextWhileMasked</var> is a method used to set the <var>Text</var> 
in the control to the content specified in <var>Value</var>.
</p>
<p>
RealSetTextWhileMasked calls the inherited <var>RealGetText</var> to get the 
current value for the control. No actions are performed in the method when 
<var>Value</var> is the same as the current text assigned to the control.
</p>
<p>
RealSetTextWhileMasked set values in internal members used to protect against 
unhandled exceptions from an assigned <var>OnChange</var> event handler. This 
ensures that the control is not left in an "unsafe" state after changes to 
the text value.
</p>
<p>
RealSetTextWhileMasked calls the inherited <var>RealSetText</var> method to 
store Value in the Text for the control. Values in the internal members are 
reset prior to exiting from the method.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.Text"/>
<link id="TCustomMaskEdit.EditText"/>
<link id="TCustomMaskEdit.OnChange"/>
<link id="TCustomMaskEdit.RealGetText"/>
<link id="TCustomEdit.RealGetText"/>
<link id="TCustomMaskEdit.RealSetText"/>
<link id="TCustomEdit.RealSetText"/>
</seealso>
</element>
<element name="TCustomMaskEdit.RealSetTextWhileMasked.Value">
<short>New value for the Text in the control.</short>
</element>

<element name="TCustomMaskEdit.InsertChar">
<short>
Inserts a single UTF-8 character at the current position for the cursor.
</short>
<descr>
<p>
<var>InsertChar</var> is a procedure used to insert the specified UTF-8 
character at the current position for the cursor.
</p>
<p>
<var>Ch</var> contains the UTF-8 character stored at the cursor (or caret) 
position. InsertChar calls <var>CanInsertChar</var> to determine if the value 
is valid for the mask character at the cursor position. If CanInsertChar 
returns <b>False</b>, the current selection in the control is deleted (done 
for Delphi compatibility).
</p>
<p>
If the character is valid for the mask position, any selected characters in 
the control are replaced with blank values by calling <var>SetCodePoint</var> 
with the value from <var>ClearChar</var>. SetCodePoint is also called to 
store Ch at the current position in the text value. 
<var>RealSetTextWhileMasked</var> is called to notify the control of the 
change to its Text value. <var>SelectNextChar</var> is called to advance the 
cursor position to the next available position in the control (when 
available).
</p>
<p>
InsertChar is used in the implementation of the <var>HandleKeyPress</var> 
method.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.HandleKeyPress"/>
</seealso>
</element>
<element name="TCustomMaskEdit.InsertChar.Ch">
<short>Character value inserted at the current cursor position.</short>
</element>

<element name="TCustomMaskEdit.CanInsertChar">
<short>
Indicates if the specified character can be inserted at a given position in 
the control.
</short>
<descr>
<p>
The value in Ch is converted to the case required for the mask type (when 
needed), and compared to value(s) permitted for the mask type. The return 
value is <b>True</b> when Ch contains a value permitted for the TMaskType.
</p>
<p>
Special logic is used when Ch contains a Space (#32) character, and is being 
applied using Paste from Clipboard. Delphi allows the Space character during 
Paste - even when it is invalid for the mask character type. In this case, 
the return value is always set to <b>True</b>.
</p>
</descr>
<seealso/>
</element>
<element name="TCustomMaskEdit.CanInsertChar.Result">
<short>
<b>True</b> when the character is valid for the mask character type.
</short>
</element>
<element name="TCustomMaskEdit.CanInsertChar.Position">
<short>Position in the control value and mask examined in the method.</short>
</element>
<element name="TCustomMaskEdit.CanInsertChar.Ch">
<short>Character value examined in the method.</short>
</element>
<element name="TCustomMaskEdit.CanInsertChar.IsPasting">
<short>
Indicates if the character originates from a Paste operation (Ctrl+V or 
Shift+Insert).
</short>
</element>

<element name="TCustomMaskEdit.DeleteSelected">
<short>Clears values in the current selection for the control.</short>
<descr>
<p>
<var>DeleteSelected</var> is a method used to clear values in the current 
selection for the control. DeleteSelected calls <var>GetSel</var> to 
determine the starting and ending positions for characters currently selected 
in the control. DeleteSelected calls <var>SetCodePoint</var> to store blank 
values for mask positions selected in the value for the control.
</p>
<p>
DeleteSelected calls <var>RealSetTextWhileMasked</var> to store the updated 
Text value in the control. <var>SetCursorPos</var> is called to update the 
caret position in the control.
</p>
<remark>
No actions are performed in the method when <var>HasSelection</var> returns 
<b>False</b>.
</remark>
</descr>
<seealso/>
</element>

<element name="TCustomMaskEdit.DeleteChars">
<short>Deletes one or more characters at the current cursor position.</short>
<descr>
<p>
The number of characters affected in the method is determined by the value 
from <var>HasSelection</var>. When <b>True</b>, the current selection is 
control is affected. When <b>False</b>, a single character value is deleted.
</p>
</descr>
<seealso/>
</element>
<element name="TCustomMaskEdit.DeleteChars.NextChar">
<short>
When <b>True</b> the following character(s) are deleted; when <b>False</b> 
the preceding character(s) are deleted.
</short>
</element>

<element name="TCustomMaskEdit.WSRegisterClass">
<short>
Registers the widget set class reference used to create new instances of the 
control.
</short>
<descr/>
<seealso/>
</element>

<element name="TCustomMaskEdit.ApplyMaskToText">
<short>Applies the edit mask in the control to the specified value.</short>
<descr>
<p>
<var>ApplyMaskToText</var> is a <var>TCaption</var> function used to apply 
the edit mask in the control to the text specified in <var>Value</var>. This 
method mimics the behavior implemented in Delphi version 3, including:
</p>
<ul>
<li>
Pads the text with blank values if needed when literals are not used in the 
mask.
</li>
<li>
When literals are present in the edit mask, matching literals in the text are 
located and processed as "segments" with the literal(s) used as delimiters.
</li>
</ul>
<p>
Some examples to clarify:
</p>
<table>
<th>
<td>EditMask</td>
<td>Text to be set</td>
<td>Result</td>
</th>
<tr>
<td>99</td>
<td>1 </td>
<td>1_</td>
</tr>
<tr>
<td>cc-cc</td>
<td>1-2</td>
<td>1_-2_</td>
</tr>
<tr>
<td>!99</td>
<td>1</td>
<td>_1</td>
</tr>
<tr>
<td>!cc-cc</td>
<td>1-2</td>
<td>_1-_2</td>
</tr>
<tr>
<td>cc-cc@cc</td>
<td>1-2@3</td>
<td>1_-2_@3_</td>
</tr>
<tr>
<td>cc-cc@cc</td>
<td>12@3</td>
<td>12-__@3_</td>
</tr>
<tr>
<td>cc-cc@cc</td>
<td>123-456@789</td>
<td>12-45@78</td>
</tr>
<tr>
<td>!cc-cc@cc</td>
<td>123-456@789</td>
<td>23-56@89</td>
</tr>
</table>
<p>
This feature seems to have been invented for use with dates:
</p>
<table>
<th>
<td>EditMask</td>
<td>Text to be set</td>
<td>Result</td>
</th>
<tr>
<td>99/99/00</td>
<td>23/1/2009</td>
<td>23/1_/20 if your locale DateSeparator is '/'</td>
</tr>
<tr>
<td>!99/99/00</td>
<td>23/1/2009</td>
<td>23/_1/09 if your locale DateSeparator is '/'</td>
</tr>
</table>
<p>
The resulting text will always have the length defined for the TInternalMask 
type used in the control. The new text value does not have to pass validation.
</p>
<p>
ApplyMaskToText is called from the SetTextApplyMask when IsMasked contains 
<b>True</b> (EditMask has a non-zero length).
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.IsMasked"/>
<link id="TCustomMaskEdit.EditMask"/>
<link id="TCustomMaskEdit.SetTextApplyMask"/>
<link id="TCustomMaskEdit.RealSetText"/>
<link id="TCustomMaskEdit.Loaded"/>
</seealso>
</element>
<element name="TCustomMaskEdit.ApplyMaskToText.Result">
<short>Value after mask literals and space substitution is applied.</short>
</element>
<element name="TCustomMaskEdit.ApplyMaskToText.Value">
<short>Value examined and updated in the method.</short>
</element>

<element name="TCustomMaskEdit.CanShowEmulatedTextHint">
<short>
Indicates if the control can display its Hint or TextHint using the LCL 
capability layer.
</short>
<descr>
<p>
<var>CanShowEmulatedTextHint</var> is an overridden <var>Boolean</var> 
function which indicates if the control can display its <var>Hint</var> or 
<var>TextHint</var> using the LCL capability layer in the Widget set class. 
CanShowEmulatedTextHint returns <b>False</b> when an edit mask has been 
assigned for the control. Otherwise, the inherited method is called to get 
the return value for the method.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.EditMask"/>
<link id="#lcl.stdctrls.TCustomEdit.CanShowEmulatedTextHint">TCustomEdit.CanShowEmulatedTextHint</link>
</seealso>
</element>
<element name="TCustomMaskEdit.CanShowEmulatedTextHint.Result">
<short>
<b>False</b> if a value has been assigned to EditMask.
</short>
</element>

<element name="TCustomMaskEdit.DisableMask">
<short>Saves and disables the edit mask in the control.</short>
<descr>
<p>
<var>DisableMask</var> is a <var>Boolean</var> function used to save the 
current edit mask to an internal member, and then disables the edit mask in 
the control. This gives developers the opportunity to set any text in the 
control without affecting the control state. Whether or not the function 
succeeds, <var>NewText</var> will be set as the new Text in the control. 
There is no need to retain the saved internal mask or trim type; they are 
only set in <var>SetEditMask</var>.
</p>
<p>
Use <var>RestoreMask</var> to re-enable the saved edit mask for the control.
</p>
</descr>
<seealso/>
</element>
<element name="TCustomMaskEdit.DisableMask.Result">
<short>
Returns <b>True</b> on success, or <b>False</b> when an edit mask is not used 
in the control.
</short>
</element>
<element name="TCustomMaskEdit.DisableMask.NewText">
<short>New value for the Text property in the control.</short>
</element>

<element name="TCustomMaskEdit.DoValidationError">
<short>
Performs actions when the control value is invalid for its edit mask.
</short>
<descr>
<p>
Signals the <var>OnValidationError</var> event handler (when assigned). It is 
called from the <var>ValidateEdit</var> method when <var>TextIsValid</var> 
returns <b>False</b> and <var>ValidationErrorMode</var> is set to 
<var>mvemEvent</var>.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.OnValidationError"/>
<link id="TCustomMaskEdit.ValidateEdit"/>
<link id="TCustomMaskEdit.ValidationErrorMode"/>
</seealso>
</element>

<element name="TCustomMaskEdit.RestoreMask">
<short>Restores the saved edit mask in the control.</short>
<descr>
<p>
<var>RestoreMask</var> is a procedure used to restore the saved edit mask in 
the control. The edit mask is saved when <var>DisableMask</var> is called and 
an edit mask is active for the control. The return value is <b>True</b> when 
the edit mask (and control state and value) are successfully restored.
</p>
<p>
In either circumstance, the value in <var>NewText</var> is assigned as the 
value for the <var>Text</var> property in the control.
</p>
</descr>
<seealso/>
</element>
<element name="TCustomMaskEdit.RestoreMask.Result">
<short><b>True</b> on success.</short>
</element>
<element name="TCustomMaskEdit.RestoreMask.NewText">
<short>New value assigned to the Text property.</short>
</element>

<element name="TCustomMaskEdit.RealSetText">
<short>Sets the value for the Text in the control.</short>
<descr>
<p>
<var>RealSetText</var> is an overridden procedure used to set the value for 
the Text in the control.
</p>
<p>
Setting the value in <var>Text</var> prior to completion of LCL component 
streaming has unwanted side-effects. To prevent the condition, RealSetText 
stores the text in <var>AValue</var> to an internal member that is applied in 
the <var>Loaded</var> method. No additional actions are performed in the 
method when <var>csLoading</var> is in the <var>ComponentState</var> property.
</p>
<p>
RealSetText uses the value from <var>IsMasked</var> to determine if an edit 
mask is used for the control. When <b>False</b>, the inherited 
<var>RealSetText</var> method is called to set the value in the 
<var>Text</var> property. When <b>True</b>, the <var>SetTextApplyMask</var> 
method is called to store the content in AValue guided by the 
<var>EditMask</var> for the control.
</p>
</descr>
<seealso/>
</element>
<element name="TCustomMaskEdit.RealSetText.AValue">
<short>Value stored in the text for the control.</short>
</element>

<element name="TCustomMaskEdit.RealGetText">
<short>Gets the value for the Text in the control.</short>
<descr>
<p>
<var>RealGetText</var> is an overridden <var>TCaption</var> function used to 
get the text value for the masked edit control. It calls the inherited method 
on entry to get the caption text for control. The value may contain mask 
literals inserted when the <var>EditMask</var> was applied to the value. When 
<var>IsMasked</var> is <b>True</b>, the <var>GetTextWithoutMask</var> method 
is called to remove the mask literals.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.GetTextWithoutMask"/>
<link id="TCustomMaskEdit.EditMask"/>
<link id="TCustomMaskEdit.IsMasked"/>
<link id="#lcl.stdctrls.TCustomEdit.RealGetText">TCustomEdit.RealGetText</link>
</seealso>
</element>
<element name="TCustomMaskEdit.RealGetText.Result">
<short>Text for the control without mask literals.</short>
</element>

<element name="TCustomMaskEdit.GetTextWithoutMask">
<short>
Gets the text value for the control without formatting applied by an edit 
mask.
</short>
<descr>
<p>
<var>GetTextWithoutMask</var> is method used to get the text for the 
specified Value without the formatting applied by the EditMask. It ensures 
that any occurrences of SpaceChar not used as a mask literal are replaced 
with #32. Other mask literals are removed from Value. If the mask indicates 
it is saved as part of the data, leading or trailing whitespace is trimmed as 
required.
</p>
<p>
GetTextWithoutMask is used in the implementation of the RealGetText method.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.SpaceChar"/>
<link id="TCustomMaskEdit.EditMask"/>
<link id="TCustomMaskEdit.RealGetText"/>
</seealso>
</element>
<element name="TCustomMaskEdit.GetTextWithoutMask.Result">
<short>
Value for the control without formatting applied by EditMask.
</short>
</element>
<element name="TCustomMaskEdit.GetTextWithoutMask.Value">
<short>
Text value for the control without mask characters or formatting.
</short>
</element>

<element name="TCustomMaskEdit.GetTextWithoutSpaceChar">
<short>
Gets the value for the control without the Space character literal used in 
the edit mask.
</short>
<descr>
<p>
<var>GetTextWithoutSpaceChar</var> is similar to GetTextWithoutMask - but 
leaves mask literals other than SpaceChar intact. It replaces all occurrences 
of SpaceChar that are not used as a mask literal with #32.
</p>
<p>
GetTextWithoutSpaceChar is used in the implementation of the Delphi 
compatible FormatMaskText routine.
</p>
</descr>
<seealso>
<link id="FormatMaskText"/>
</seealso>
</element>
<element name="TCustomMaskEdit.GetTextWithoutSpaceChar.Result">
<short>
Text value for the control after the SpaceChar literal is converted to its 
conventional representation (#32).
</short>
</element>
<element name="TCustomMaskEdit.GetTextWithoutSpaceChar.Value">
<short>
Masked caption value examined and converted in the method.
</short>
</element>

<element name="TCustomMaskEdit.SetTextApplyMask">
<short>
Sets the value for the control after applying its edit mask.
</short>
<descr>
<p>
<var>SetTextApplyMask</var> is a method used to set the text for the control 
to the specified Value. It ensures that the EditMask is applied to the value 
when IsMasked returns True. The ApplyMaskToText method is called to generate 
the text with mask literals as needed for the EditMask.
</p>
<p>
RealSetTextWhileMasked is called to apply the masked text value to the 
control.
</p>
<p>
When Value is an empty string (''), the Clear method is called to set the 
control value.
</p>
<p>
SetTextApplyMask is used in the implementation of the RealSetText method. It 
is also called from the Loaded method when the component has finished loading 
during LCL streaming.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.IsMasked"/>
<link id="TCustomMaskEdit.EditMask"/>
<link id="TCustomMaskEdit.Clear"/>
<link id="TCustomMaskEdit.ApplyMaskToText"/>
<link id="TCustomMaskEdit.RealSetText"/>
<link id="TCustomMaskEdit.Loaded"/>
</seealso>
</element>
<element name="TCustomMaskEdit.SetTextApplyMask.Value">
<short>
Text before mask literals in EditMask are applied.
</short>
</element>

<element name="TCustomMaskEdit.GetEditText">
<short>
Gets the value for the EditText property.
</short>
<descr>
<p>
<var>GetEditText</var> is a <var>String</var> function used to get the value 
for the EditText property. It contains the text displayed in the edit box for 
the control including any mask literals and formatting required for the 
EditMask. The value is retrieved by calling the overridden RealGetText method 
for the control.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.EditText"/>
</seealso>
</element>
<element name="TCustomMaskEdit.GetEditText.Result">
<short>
Value for the EditText property.
</short>
</element>

<element name="TCustomMaskEdit.SetEditText">
<short>
Sets the value for the EditText property.
</short>
<descr>
<p>
<var>SetEditText</var> sets the value for the Text displayed in the control. 
The new value for the text is padded (when needed) to the length defined in 
the edit mask. SetEditText calls <var>RealSetTextWhileMasked</var> to store 
the value in the <var>Text</var> in the control.
</p>
<remark>
This method is not Delphi compatible, but this is by design. Delphi allows 
setting the EditText to any length, which is extremely dangerous! This method 
ensures that the text assigned in the control does not exceed the length 
specified by its edit mask.
</remark>
</descr>
<seealso>
<link id="TCustomMaskEdit.EditText"/>
</seealso>
</element>
<element name="TCustomMaskEdit.SetEditText.Value">
<short>New value for the EditText property.</short>
</element>

<element name="TCustomMaskEdit.GetSel">
<short>
Finds the starting and ending positions for the selection.
</short>
<descr>
<var>GetSel</var> finds the starting and ending positions for the selected 
text in the control. Calls GetSelStart to get the value for the _SelStart 
argument. Calls GetSelLength to get the number of characters selected, and 
calculates the value for _SelStop.
</descr>
<seealso/>
</element>
<element name="TCustomMaskEdit.GetSel._SelStart">
<short>Stating position for the text selected in the control.</short>
</element>
<element name="TCustomMaskEdit.GetSel._SelStop">
<short>Ending position for the text selected in the control.</short>
</element>

<element name="TCustomMaskEdit.SetSel">
<short>
Specifies the starting and ending positions for the text selected in the 
control.
</short>
<descr>
<var>SetSel</var> specifies the starting and ending positions for the text 
selected in the control.
</descr>
</element>
<element name="TCustomMaskEdit.SetSel._SelStart">
<short>Starting position for text selected in the control.</short>
</element>
<element name="TCustomMaskEdit.SetSel._SelStop">
<short>Ending position for text selected in the control.</short>
</element>

<element name="TCustomMaskEdit.TextChanged">
<short>
Performs actions when the value in the Text property has been changed.
</short>
<descr>
<p>
<var>TextChanged</var> is an overridden procedure used to respond to a change 
in the value for the Text property. Its purpose is to avoid leaving the 
control in an invalid state when:
</p>
<ul>
<li>
A Cut, Paste, or Clear operation from an Operating System context menu. We 
try to catch and handle these messages.
</li>
<li>
Dragging selected text in the control with the mouse.
</li>
</ul>
<p>
If one of these operations happen, then the internal logic for cursor 
positioning and character insertion can be invalid. So, we simply restore the 
text value from an internal member used to track the current text value.
</p>
<p>
The inherited TextChanged method is called when IsMasked is <b>False</b>, or 
when an internal update to the control value is performed. Otherwise, 
RealSetTextWhileMasked is called followed by SetCursorPos.
</p>
</descr>
<seealso>
<link id="#lcl.stdctrls.TCustomEdit.TextChanged">TCustomEdit.TextChanged</link>
</seealso>
</element>

<element name="TCustomMaskEdit.Change">
<short>
Suppresses the OnChange event when the initial value for the control is 
assigned.
</short>
<descr>
<p>
<var>Change</var> is an overridden procedure used to perform actions when the 
value for the control is changed. Change suppresses firing the 
<var>OnChange</var> event handler when the initial value for the control is 
assigned by using an internal member variable in the class instance. If the 
variable is not set, the inherited <var>Change</var> method is called to 
signal the <var>OnChange</var> event handler (and/or the 
<var>OnChangeHandler</var> event handler) for the control.
</p>
</descr>
<seealso>
<link id="#lcl.stdctrls.TCustomEdit.Change">TCustomEdit.Change</link>
<link id="#lcl.stdctrls.TCustomEdit.OnChange">TCustomEdit.OnChange</link>
</seealso>
</element>

<element name="TCustomMaskEdit.SetCharCase">
<short>Sets the value in the CharCase property.</short>
<descr>
<p>
<var>SetCharCase</var> is an overridden procedure used to set the value in 
the <var>CharCase</var> property.
</p>
<p>
<var>SetCharCase</var> is modified in TCustomMaskEdit to ensure that the 
correct value is used when an edit mask has been assigned in the control. 
CharCase is set to the value <var>ecNormal</var> when <var>IsMasked</var> 
contains <b>True</b>. It is assumed that case conversions are performed 
according to the rules for the edit mask.
</p>
<p>
When IsMasked is <b>False</b>, the property is set to the content in the 
<var>Value</var> argument.
</p>
<p>
SetCharCase calls the inherited method to store the new value for the 
property.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.IsMasked"/>
<link id="#lcl.stdctrls.TCustomEdit.CharCase">TCustomEdit.CharCase</link>
</seealso>
</element>
<element name="TCustomMaskEdit.SetCharCase.Value">
<short>New value for the property.</short>
</element>

<element name="TCustomMaskEdit.SetMaxLength">
<short>Sets the value for the MaxLength property.</short>
<descr/>
<seealso>
<link id="TCustomMaskEdit.MaxLength"/>
</seealso>
</element>
<element name="TCustomMaskEdit.SetMaxLength.Value">
<short>New value for the property.</short>
</element>

<element name="TCustomMaskEdit.GetMaxLength">
<short>Gets the value for the MaxLength property.</short>
<descr/>
<seealso>
<link id="TCustomMaskEdit.MaxLength"/>
</seealso>
</element>
<element name="TCustomMaskEdit.GetMaxLength.Result">
<short>Value for the property.</short>
</element>

<element name="TCustomMaskEdit.SetNumbersOnly">
<short>Sets the value for the NumbersOnly property.</short>
<descr>
<p>
<var>SetNumbersOnly</var> is an overridden <var>Boolean</var> function used 
as the write access specifier for the <var>NumbersOnly</var> property.
</p>
<p>
SetNumbersOnly provides support use of an edit mask in the control. When 
<var>IsMasked</var> is <b>True</b>, setting NumbersOnly to <b>True</b> can 
interfere with the masking logic in the control; the property is 
automatically set to <b>False</b> when IsMasked is <b>True</b>. Otherwise, 
the inherited SetNumbersOnly method is called to set to the value for the 
property.
</p>
</descr>
<seealso>
<link id="#lcl.stdctrls.TCustomEdit.SetNumbersOnly">TCustomEdit.SetNumbersOnly</link>
<link id="#lcl.stdctrls.TCustomEdit.NumbersOnly">TCustomEdit.NumbersOnly</link>
</seealso>
</element>
<element name="TCustomMaskEdit.SetNumbersOnly.Value">
<short>New value for the property.</short>
</element>

<element name="TCustomMaskEdit.Loaded">
<short>
Performs actions when a component has been loaded from the LCL streaming 
mechanism.
</short>
<descr>
<p>
<var>Loaded</var> is an overridden procedure used to perform actions when a 
component has been completely loaded from the LCL component streaming 
mechanism. Loaded calls the inherited method, and sets the value in internal 
members used to track the <var>EditMask</var> and <var>Text</var> values in 
the control.
</p>
</descr>
<seealso>
<link id="#lcl.controls.TWinControl.Loaded">TWinControl.Loaded</link>
</seealso>
</element>

<element name="TCustomMaskEdit.LMPasteFromClip">
<short>
<var>LMPasteFromClip</var> is the LCL message method for pasting from the 
clipboard.
</short>
</element>

<element name="TCustomMaskEdit.LMCutToClip">
<short>
<var>LMCutToClip</var> is the LCL message method for cutting to the clipboard.
</short>
</element>

<element name="TCustomMaskEdit.LMClearSel">
<short>
<var>LMClearSel</var> is the LCL message method for clearing selected items.
</short>
</element>

<element name="TCustomMaskEdit.EditCanModify">
<short>If <b>True</b>, the Edit box is allowed to modify its contents.</short>
<descr>
<p>
<var>EditCanModify</var> always returns True in <var>TCustomMaskEdit</var>. 
It is a virtual method, and can be overridden in descendent classes (like 
TDBEdit).
</p>
</descr>
<seealso/>
</element>
<element name="TCustomMaskEdit.EditCanModify.Result">
<short>
<b>True</b> if the control can modify its text value.
</short>
</element>

<element name="TCustomMaskEdit.Reset">
<short>
Reset returns the edit to its default state with mask appearing in Text box 
and no string input.
</short>
<descr/>
<seealso/>
</element>

<element name="TCustomMaskEdit.DoEnter">
<short>Performs actions needed when the control is entered.</short>
<descr>
<p>
<var>DoEnter</var> is an overridden procedure used to perform actions needed 
the control is entered. DoEnter extends the behavior in the inherited method 
to track the value for control when entered and to perform auto selection 
logic when an edit mask is in use.
</p>
</descr>
<seealso>
<link id="#lcl.stdctrls.TCustomEdit.DoEnter">TCustomEdit.DoEnter</link>
</seealso>
</element>

<element name="TCustomMaskEdit.DoExit">
<short>Performs actions needed when the control is exited.</short>
<descr/>
<seealso>
<link id="#lcl.stdctrls.TCustomEdit.DoExit">TCustomEdit.DoExit</link>
</seealso>
</element>

<element name="TCustomMaskEdit.KeyDown">
<short>Performs actions needed to apply key down messages.</short>
<descr>
<p>
Calls the inherited <var>KeyDown</var> method. If an edit mask is not 
assigned in the control, no additional actions are required in the method.
</p>
<p>
KeyDown handles the following keys, and performs the following actions:
</p>
<dl>
<dt>Shift + Left, Shift + Right, Shift + Home, Shift + End</dt>
<dd>Ignored</dd>
<dt>Escape</dt>
<dd>Resets text to the un-edited value</dd>
<dt>Shift + Delete</dt>
<dd>Cuts selection to the clipboard</dd>
<dt>Ctrl + Delete</dt>
<dd>Deletes the current selection</dd>
<dt>Delete</dt>
<dd>Deletes the character at the cursor position</dd>
<dt>Ctrl + Backspace</dt>
<dd>Deletes the current selection</dd>
<dt>Shift + Backspace</dt>
<dd>Cuts the current selection to the clipboard</dd>
<dt>Backspace</dt>
<dd>Deletes the character prior to cursor position</dd>
<dt>Shift + Insert</dt>
<dd>Paste from the clipboard</dd>
<dt>Ctrl + Insert</dt>
<dd>Copy to the clipboard</dd>
<dt>Ctrl + C</dt>
<dd>Copy to the clipboard</dd>
<dt>Ctrl + X</dt>
<dd>Cut to the clipboard</dd>
<dt>Ctrl + V</dt>
<dd>Paste from the clipboard</dd>
<dt>Ctrl + Left, Left</dt>
<dd>Select the previous character</dd>
<dt>Ctrl + Right, Right</dt>
<dd>Selects the next character</dd>
<dt>Home </dt>
<dd>Move to the first character in the control</dd>
<dt>End</dt>
<dd>Move to the end of the control</dd>
<dt>Up, Down</dt>
<dd>Ignored</dd>
<dt>Ctrl + A</dt>
<dd>Selects all of the text in the control</dd>
</dl>
</descr>
<seealso>
<link id="#lcl.controls.TWinControl.KeyDown">TWinControl.KeyDown</link>
</seealso>
</element>
<element name="TCustomMaskEdit.KeyDown.Key">
<short>Key code examined in the method.</short>
</element>
<element name="TCustomMaskEdit.KeyDown.Shift">
<short>Key modifier examined in the method.</short>
</element>

<element name="TCustomMaskEdit.HandleKeyPress">
<short>Handle all keys from KeyPress and Utf8KeyPress.</short>
<descr>
<p>
<var>HandleKeyPress</var> is a method used to handle keys forwarded from the 
<var>KeyPress</var> and <var>UTF8KeyPress</var> methods. No actions are 
performed in the method if the control is <var>ReadOnly</var>, or 
<var>IsMasked</var> returns <b>False</b>.
</p>
<p>
HandleKeyPress set the cursor position to the start of the current selection 
in the control. If the cursor is on a mask literal, it is advanced to the 
next writable position.
</p>
<p>
When <var>Key</var> is a <b>Period</b> (<b>'.'</b>) or a Comma (<b>','</b>) 
character, the cursor is advanced to the next Period or Comma character in 
the mask. For other character values, the InsertChar method is called.
</p>
<p>
The value in Key is set to an empty string (<b>''</b>) when it is handled in 
the method.
</p>
</descr>
<seealso/>
</element>
<element name="TCustomMaskEdit.HandleKeyPress.Key">
<short>Character value for the key examined in the method.</short>
</element>

<element name="TCustomMaskEdit.KeyPress">
<short>
Performs actions needed to handle the specified character in the control.
</short>
<descr>
<p>
<var>KeyPress</var> is an overridden procedure used to apply the character 
specified in <var>Key</var> to the control. KeyPress calls the inherited 
method, and converts the character in Key to a UTF-8-encoded character which 
is passed to the <var>HandleKeyPress</var> method. All character values 
handled in HandleKeyPress are set to an empty character, and causes the value 
in Key to be digested in the method.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.UTF8KeyPress"/>
<link id="#lcl.controls.TWinControl.KeyPress">TWinControl.KeyPress</link>
</seealso>
</element>
<element name="TCustomMaskEdit.KeyPress.Key">
<short>Character handled in the method.</short>
</element>

<element name="TCustomMaskEdit.Utf8KeyPress">
<short>
Handles a key press with the specified UTF-8 character value.
</short>
<descr>
<p>
<var>Utf8KeyPress</var> is an overridden method in 
<var>TCustomMaskEdit</var>, and calls the inherited method on entry to signal 
the <var>OnUTF8KeyPress</var> event handler (when assigned).
</p>
<p>
UTF8Key contains the UTF-8-encoded character for the key press notification. 
The value in UTF8Key may be set to an empty character ('') if it has been 
handled in the ancestor method.
</p>
<p>
Utf8KeyPress calls the <var>HandleKeyPress</var> method to apply the 
character value to the control. It is only called when UTF8Key contains a 
multi-byte UTF-8 character value. Otherwise, the key event is handled by the 
<var>KeyPress</var> method.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.HandleKeyPress"/>
<link id="TCustomMaskEdit.KeyPress"/>
<link id="#lcl.controls.TWinControl.UTF8KeyPress">TWinControl.UTF8KeyPress</link>
<link id="#lcl.controls.TWinControl.OnUTF8KeyPress">TWinControl.OnUTF8KeyPress</link>
</seealso>
</element>
<element name="TCustomMaskEdit.Utf8KeyPress.UTF8Key">
<short>UTF-8-encode key handled in the method.</short>
</element>

<element name="TCustomMaskEdit.MouseUp">
<short>Performs actions needed to handle a mouse button up message.</short>
<descr>
<p>
Calls the inherited <var>MouseUp</var> method. When a mask is used in the 
control, the cursor is moved to the beginning of the current selection in the 
control and <var>SetCursorPos</var> is called to update the caret position.
</p>
</descr>
<seealso>
<link id="#lcl.stdctrls.TCustomEdit.MouseUp">TCustomEdit.MouseUp</link>
</seealso>
</element>
<element name="TCustomMaskEdit.MouseUp.Button">
<short>Mouse button for the message.</short>
</element>
<element name="TCustomMaskEdit.MouseUp.Shift">
<short>Shift modifier for the message.</short>
</element>
<element name="TCustomMaskEdit.MouseUp.X">
<short>Horizontal coordinate for the mouse position.</short>
</element>
<element name="TCustomMaskEdit.MouseUp.Y">
<short>Vertical coordinate for the mouse position.</short>
</element>

<element name="TCustomMaskEdit.CheckCursor">
<short>
Updates the position for the cursor (or caret) when an EditMask is used in 
the control.
</short>
<descr>
<p>
<var>CheckCursor</var> is a procedure used to update the position for the 
cursor (or caret) when an <var>EditMask</var> is used in the control. 
CheckCursor uses the value from <var>IsMasked</var> to determine if the 
cursor position needs to be updated by calling <var>SetCursorPos</var>. When 
<var>IsMasked</var> returns <b>False</b>, no actions are performed in the 
method.
</p>
<p>
Used in the implementation of the <var>SetSpaceChar</var> method.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.IsMasked"/>
<link id="TCustomMaskEdit.SpaceChar"/>
</seealso>
</element>

<element name="TCustomMaskEdit.EditText">
<short>
Value entered in the control and obscured / formatted using the EditMask.
</short>
<descr>
<p>
Calls the inherited RealGetText method to get the value for the property. 
When a new value for the property is assigned, mask literals are restored for 
the new value to ensure that the control is in a recoverable state. EditText 
is truncated, or padded with ClearChar as needed, so that the value matches 
the length for the <var>EditMask</var>. These actions are not performed when 
<var>IsMasked</var> returns <b>False</b> (EditMask has not been assigned).
</p>
<remark>
SetEditText is not Delphi compatible. Delphi allows any text value to be 
assigned to the control, leaving the control in an unrecoverable state where 
it is impossible to leave the control because the text can never be 
validated. The LCL implementation does not allow this.
</remark>
</descr>
<seealso/>
</element>

<element name="TCustomMaskEdit.IsMasked">
<short>
<b>True</b> if a non-empty value has been assigned to EditMask.
</short>
<descr/>
<seealso/>
</element>

<element name="TCustomMaskEdit.SpaceChar">
<short>
Contains the value used to represent Space (#32) characters in the control 
value.
</short>
<descr>
<p>
<var>SpaceChar</var> is a <var>Char</var> property with the value used to 
represent <b>Space</b> (<b>text</b>) characters in the value for the control. 
It corresponds to the '_' character used the mask fields.
</p>
<p>
When a Space character is found in the text for the control, or a value has 
not been provided for a masked character position, it is replaced with this 
character.
</p>
<p>
The default value for the property is <b>'_'</b>.
</p>
<p>
Setting a new value for the property causes the existing text in the control 
to be updated. All occurrences of the existing SpaceChar are converted to the 
new value for the property, and stored as the new text for the control. The 
cursor position and text selection are updated when the text is stored.
</p>
<p>
SpaceChar is not used when <var>EditMask</var> is an empty string (''), or 
<var>IsMasked</var> is <b>False</b>.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.EditMask"/>
<link id="TCustomMaskEdit.IsMasked"/>
</seealso>
</element>

<element name="TCustomMaskEdit.MaxLength">
<short>
Indicates the maximum number of characters that can be stored in the value 
for the control.
</short>
<descr>
<p>
<var>MaxLength</var> is an <var>Integer</var> property that represents the 
maximum number of characters that can be stored in the edit control. 
<var>TCustomMaskEdit</var> re-implements the read and write access specifiers 
for the property to provide support for use of an edit mask in the control.
</p>
<p>
Setting a new value for the property causes the internal length for the edit 
mask to be used as the value property. The specified <var>Value</var> is 
discarded when <var>IsMasked</var> is <b>True</b>. Otherwise, the new 
<var>Value</var> is stored using the inherited property accessor.
</p>
</descr>
<seealso>
<link id="#lcl.stdctrls.TCustomEdit.MaxLength">TCustomEdit.MaxLength</link>
</seealso>
</element>

<element name="TCustomMaskEdit.EditMask">
<short>
Contains the mask characters classes and literals used to format/obscure the 
value for the control.
</short>
<descr>
<p>
<var>EditMask</var> is a <var>String</var> property which contains the mask 
specification for the edit control. EditMask contains the delimited mask 
fields with the character types, storage specifier, and the character value 
used to represent a space in the edit mask. For example:
</p>
<code>AMaskEdit.EditMask := '999.999;1;0';</code>
<p>
The EditMask is formed using a pattern of characters with the following 
meaning:
</p>
<table>
<tr>
<td><b>\ </b></td>
<td>after this you can set an arbitrary char</td>
</tr>
<tr>
<td><b>&gt;</b></td>
<td>after this the characters are in in uppercase</td>
</tr>
<tr>
<td><b>&lt;</b></td>
<td>after this the character are in lowercase</td>
</tr>
<tr>
<td><b>l</b></td>
<td>only an optional letter</td>
</tr>
<tr>
<td><b>L</b></td>
<td>only a letter</td>
</tr>
<tr>
<td><b>a</b></td>
<td>an optional alphanumeric character (['A'..'Z','a..'z','0'..'9'])</td>
</tr>
<tr>
<td><b>A</b></td>
<td>an alphanumeric character</td>
</tr>
<tr>
<td><b>c</b></td>
<td>any optional Utf-8 character (including a Space character)</td>
</tr>
<tr>
<td><b>C</b></td>
<td>any Utf-8 character in the range #33-#255 (does not include Space)</td>
</tr>
<tr>
<td><b>9</b></td>
<td>only an optional number</td>
</tr>
<tr>
<td><b>0</b></td>
<td>only a number</td>
</tr>
<tr>
<td><b>#</b></td>
<td>only an optional number or + or -</td>
</tr>
<tr>
<td><b>:</b></td>
<td>displays the hour separator character</td>
</tr>
<tr>
<td><b>/</b></td>
<td>displays the date separator character</td>
</tr>
<tr>
<td><b>h</b></td>
<td>
an optional hexadecimal character (Lazarus extension, not supported by Delphi)
</td>
</tr>
<tr>
<td><b>H</b></td>
<td>a hexadecimal character (Lazarus extension, not supported by Delphi)</td>
</tr>
<tr>
<td><b>b</b></td>
<td>an optional binary character (Lazarus extension, not supported by 
Delphi)</td>
</tr>
<tr>
<td><b>B</b></td>
<td>a binary character (Lazarus extension, not supported by Delphi)</td>
</tr>
<tr>
<td><b>!</b></td>
<td>
Trim leading or trailing blanks, depending on position of the mask character
</td>
</tr>
</table>
<p>
Setting a new value for the property causes the value to be decomposed into 
the internal <var>TInternalMask</var> representing the individual characters 
in the edit mask. Individual UTF-8 characters in <var>Value</var> are either 
added to the mask as literals or character types. <var>Clear</var> is called 
to remove the displayed value in the control, and the initial <var>Text</var> 
value is set to the value from <var>RealGetText</var>.
</p>
</descr>
<seealso/>
</element>

<element name="TCustomMaskEdit.ValidationErrorMode">
<short>
Indicates the action taken when the control value is invalid for its mask.
</short>
<descr>
<p>
<var>ValidationErrorMode</var> is a <var>TMaskEditValidationErrorMode</var> 
property which indicates the action taken when the value for the control is 
invalid for the mask in the <var>EditMask</var> property.
</p>
<p>
The default value for the property is <var>mvemException</var>, and causes an 
exception to be raised when control value is invalid for its mask. Use 
<var>mvemException</var> to cause the <var>OnValidationError</var> event 
handler to be signalled for the validation error.
</p>
<p>
The property value is used in the <var>ValidateEdit</var> method when 
<var>IsMasked</var> is set to <b>True</b> and the <var>EditText</var> for the 
control is not valid.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.OnValidationError"/>
<link id="TCustomMaskEdit.ValidateEdit"/>
<link id="TCustomMaskEdit.IsMasked"/>
<link id="TCustomMaskEdit.EditText"/>
<link id="TMaskEditValidationErrorMode"/>
</seealso>
</element>

<element name="TCustomMaskEdit.CutToClipBoard" link="#lcl.stdctrls.TCustomEdit.CutToClipboard"/>
<element name="TCustomMaskEdit.PasteFromClipBoard" link="#lcl.stdctrls.TCustomEdit.PasteFromClipboard"/>

<element name="TCustomMaskEdit.Create">
<short>Constructor for the class instance.</short>
<descr>
<p>
<var>Create</var> is the overridden constructor for the class instance. 
Create sets the default values for internal members and properties specific 
to <var>TCustomMaskEdit</var>. The value in <var>SpaceChar</var> is set to 
'_'.
</p>
<p>
Create calls the inherited constructor, and sets the value in the internal 
member used for the text in the edit control by calling the inherited 
<var>RealGetText</var> method.
</p>
</descr>
<seealso>
<link id="#lcl.stdctrls.TCustomEdit.RealGetText">TCustomEdit.RealGetText</link>
<link id="TMaskEditTrimType"/>
</seealso>
</element>
<element name="TCustomMaskEdit.Create.AOwner">
<short>Owner for the class instance.</short>
</element>

<element name="TCustomMaskEdit.Clear">
<short>Clears the value for the edit control.</short>
<descr>
<p>
<var>Clear</var> is an overridden procedure used to clear the value for the 
text in the edit control. Clear uses the value from <var>IsMasked</var> to 
determine if a mask specification has been assigned for the edit control.
</p>
<p>
When IsMasked is <b>True</b>, the <var>ClearChar</var> method is called for 
each position in the <var>EditMask</var> to get the blank value for the mask 
character. <var>RealSetTextWhileMasked</var> is called to store the new value 
for the control. The cursor (or caret) is reset to the beginning of the text, 
and <var>SetCursorPos</var> is called to update the cursor position.
</p>
<p>
When IsMasked is <b>False</b>, the inherited <var>Clear</var> method is 
called to update the content for the control.
</p>
<p>
Clear is used in the implementation of the <var>SetEditMask</var>, 
<var>RestoreMask</var>, and <var>SetTextApplyMask</var> methods.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.IsMasked"/>
<link id="TCustomMaskEdit.EditMask"/>
<link id="TCustomMaskEdit.RestoreMask"/>
<link id="TCustomMaskEdit.SetTextApplyMask"/>
<link id="#lcl.stdctrls.TCustomEdit.Clear">TCustomEdit.Clear</link>
</seealso>
</element>

<element name="TCustomMaskEdit.SelectAll">
<short>Selects all of the text in the masked edit control.</short>
<descr>
<p>
<var>SelectAll</var> is an overridden method used to select all of the text 
in the masked edit control. SelectAll ensures that content formatted using 
the <var>EditMask</var> is handled in the method.
</p>
<p>
When <var>IsMasked</var> is <b>True</b>, the inherited <var>RealGetText</var> 
method is called to get the text content for the control. <var>SelStart</var> 
and <var>SelLength</var> are updated to use the values needed for the text 
content. The inherited method is <b>not</b> called.
</p>
<p>
When IsMasked is <b>False</b>, the inherited method is called to handle the 
text selection.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.IsMasked"/>
<link id="TCustomMaskEdit.EditMask"/>
<link id="#lcl.stdctrls.TCustomEdit.RealGetText">TCustomEdit.RealGetText</link>
<link id="#lcl.stdctrls.TCustomEdit.SelectAll">TCustomEdit.SelectAll</link>
<link id="#lcl.stdctrls.TCustomEdit.SelStart">TCustomEdit.SelStart</link>
<link id="#lcl.stdctrls.TCustomEdit.SelLength">TCustomEdit.SelLength</link>
</seealso>
</element>

<element name="TCustomMaskEdit.ValidateEdit">
<short>
Validates the value for the edit control when an EditMask has been specified.
</short>
<descr>
<p>
<var>ValidateEdit</var> is a procedure used to validate the text for the edit 
control using the assigned mask. ValidateEdit uses the value in 
<var>IsMasked</var> to determine if a mask has been assigned in the control.
</p>
<p>
When IsMasked is <b>True</b>, the value for the control is validated. The 
<var>TextIsValid</var> method is called with the value from the 
<var>Text</var> property. If the Text is not valid, an 
<var>EDBEditError</var> exception is raised for the error condition.
</p>
<p>
When IsMasked is <b>False</b>, no actions are performed in the method.
</p>
<p>
ValidateEdit is used in the implementation of the <var>DoExit</var> method.
</p>
</descr>
<errors>
Raises an <var>EDBEditError</var> if the <var>Text</var> for the control is 
not valid. Raised with the message in <var>SMaskEditNoMatch</var>.
</errors>
<seealso>
<link id="TCustomMaskEdit.IsMasked"/>
<link id="TCustomMaskEdit.DoExit"/>
<link id="TCustomMaskEdit.ValidateEdit"/>
<link id="TMaskEdit.Text"/>
<link id="EDBEditError"/>
<link id="SMaskEditNoMatch"/>
</seealso>
</element>

<element name="TCustomMaskEdit.EnableSets">
<short>Enables or disables use of set notation in the EditMask.</short>
<descr>
<p>
<var>EnableSets</var> is a <var>Boolean</var> property used when a new value 
assigned to the EditMask property is parsed to reconstruct the internal mask 
characters and literals for the control.
</p>
<p>
When set to <b>False</b>, the '[' and ']' characters used in set notation are 
treated as literal characters. When set to <b>True</b>, the optional or 
required set definition is added to the mask. The default value for the 
property is <b>False</b>.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.EditMask"/>
</seealso>
</element>

<element name="TCustomMaskEdit.Modified">
<short>Indicates if the value for the edit control has been changed.</short>
<descr>
<p>
<var>Modified</var> is a <var>Boolean</var> property which indicates if the 
value for the edit control has been changed.
</p>
</descr>
<seealso/>
</element>

<element name="TCustomMaskEdit.OnValidationError">
<short>
Event handler signalled when the value for the masked edit control is invalid.
</short>
<descr>
<p>
<var>OnValidationError</var> is a <var>TNotifyEvent</var> property with the 
event handler signalled when the value for the masked edit control is invalid 
for its <var>EditMask</var>. OnValidationError is signalled (when assigned) 
from the ValidateEdit method and occurs when focus is removed from the control 
and ValidationErrorMode is set mvemEvent. An application can implement and 
assign a handler to perform actions needed to respond to an invalid value 
entered in the control.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.ValidateEdit"/>
<link id="TCustomMaskEdit.ValidationErrorMode"/>
<link id="TCustomMaskEdit.IsMasked"/>
<link id="TCustomMaskEdit.EditMask"/>
<link id="TCustomMaskEdit.EditText"/>
<link id="TMaskEditValidationErrorMode"/>
<link id="#rtl.classes.TNotifyEvent">TNotifyEvent</link>
</seealso>
</element>

<element name="TMaskEdit">
<short>
<var>TMaskEdit</var> is an Edit box with characters masked out to avoid 
unauthorized reading.
</short>
<descr>
<p>
<var>TMaskEdit</var> is used to display an Edit Box with the input text 
masked by a selected character specified by PasswordChar, usually an 
asterisk, or by EditMask (a complete string), specified in TCustomMaskEdit.
</p>
<p>
Useful for inputting passwords or capturing input using a specific format and 
validation.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit"/>
</seealso>
</element>

<element name="TMaskEdit.IsMasked" link="#lcl.maskedit.TCustomMaskEdit.IsMasked"/>
<element name="TMaskEdit.EditText" link="#lcl.maskedit.TCustomMaskEdit.EditText"/>
<element name="TMaskEdit.ValidationErrorMode" link="#lcl.maskedit.TCustomMaskEdit.ValidationErrorMode"/>
<element name="TMaskEdit.Align" link="#lcl.controls.TControl.Align"/>
<element name="TMaskEdit.Alignment" link="#lcl.stdctrls.TCustomEdit.Alignment"/>
<element name="TMaskEdit.Anchors" link="#lcl.controls.TControl.Anchors"/>
<element name="TMaskEdit.AutoSelect" link="#lcl.stdctrls.TCustomEdit.AutoSelect"/>
<element name="TMaskEdit.AutoSize" link="#lcl.stdctrls.TCustomEdit.AutoSize"/>
<element name="TMaskEdit.BiDiMode" link="#lcl.controls.TControl.BiDiMode"/>
<element name="TMaskEdit.BorderSpacing" link="#lcl.controls.TControl.BorderSpacing"/>
<element name="TMaskEdit.BorderStyle" link="#lcl.stdctrls.TCustomEdit.BorderStyle"/>

<element name="TMaskEdit.CharCase">
<short>Determines the case for the text in the masked edit control.</short>
<descr>
<p>
Indicates how text is displayed in a text editing control in the following 
ways:
</p>
<ul>
<li>Normal case letters</li>
<li>Upper case letters</li>
<li>Lower case letters</li>
</ul>
<p>The rules can, of course, be overridden by use of the shift key.</p>
</descr>
<seealso>
<link id="#lcl.stdctrls.TCustomEdit.CharCase">TCustomEdit.CharCase"</link>
</seealso>
</element>

<element name="TMaskEdit.Color" link="#lcl.controls.TControl.Color"/>
<element name="TMaskEdit.Constraints" link="#lcl.controls.TControl.Constraints"/>
<element name="TMaskEdit.DragCursor" link="#lcl.controls.TControl.DragCursor"/>
<element name="TMaskEdit.DragKind" link="#lcl.controls.TControl.DragKind"/>
<element name="TMaskEdit.DragMode" link="#lcl.controls.TControl.DragMode"/>
<element name="TMaskEdit.Enabled" link="#lcl.controls.TControl.Enabled"/>
<element name="TMaskEdit.Font" link="#lcl.controls.TControl.Font"/>
<element name="TMaskEdit.MaxLength" link="#lcl.maskedit.TCustomMaskEdit.MaxLength"/>
<element name="TMaskEdit.ParentBiDiMode" link="#lcl.controls.TControl.ParentBiDiMode"/>
<element name="TMaskEdit.ParentColor" link="#lcl.stdctrls.TCustomEdit.ParentColor"/>
<element name="TMaskEdit.ParentFont" link="#lcl.controls.TControl.ParentFont"/>
<element name="TMaskEdit.ParentShowHint" link="#lcl.controls.TControl.ParentShowHint"/>

<element name="TMaskEdit.PopupMenu">
<short>
A context-sensitive menu that pops up when the right mouse button is clicked 
over this control.
</short>
<descr>
<p>
One of the standard properties, which should be supported by all descendants.
</p>
<p>
Reads the details of the pop-up menu, or stores them. Properties are defined 
in the parent class <link id="#lcl.Menus.TPopupMenu">TPopupMenu</link>.
</p>
</descr>
<seealso/>
</element>

<element name="TMaskEdit.ReadOnly" link="#lcl.stdctrls.TCustomEdit.ReadOnly"/>

<element name="TMaskEdit.ShowHint">
<short>Flag to determine if the hint is displayed for this control.</short>
<descr>
<p>
One of the standard properties, which should be supported by all descendants.
</p>
<p>
Reads flag or writes one to determine if a hint is to be shown when mouse 
hovers over this control. If value is stored, a storage flag is set. Display 
of the actual hint is controlled by OnShowHint.
</p>
</descr>
<seealso/>
</element>

<element name="TMaskEdit.TabOrder">
<short>Keyboard navigation order for the control when Tab is pressed.</short>
<descr>
<p>
Keyboard navigation order for the control in it Parent control when the Tab 
key is pressed. The default value for the property is <b>-1</b>.
</p>
<p>
Use <var>TabStop</var> to enable or disable keyboard navigation for the 
control.
</p>
</descr>
<seealso>
<link id="TMaskEdit.TabStop"/>
<link id="#lcl.controls.TWinControl.TabOrder">TWinControl.TabOrder</link>
</seealso>
</element>

<element name="TMaskEdit.TabStop">
<short>
Enables or disables keyboard navigation using the Tab key.
</short>
<descr>
<p>
Use the TabStop property to allow or disallow access to the control using the 
Tab key. If <var>TabStop</var> is <b>True</b>, the control is in the tab 
order. If <var>TabStop</var> is <b>False</b>, the control is not in the tab 
order and the user can't use the Tab key to move to the control.
</p>
</descr>
<seealso>
<link id="#lcl.stdctrls.TCustomEdit.TabStop">TCustomEdit.TabStop</link>
<link id="#lcl.controls.TWinControl.TabStop">TWinControl.TabStop</link>
</seealso>
</element>

<element name="TMaskEdit.Visible">
<short>Indicates if the control is visible or hidden.</short>
<descr>
<p>
The <var>Visible</var> property indicates the ability to see a visual 
control. If Visible is <b>True</b> the control is shown, otherwise it is 
hidden. Calling Show sets Visible to <b>True</b>. Setting Visible to 
<b>False</b> is equivalent to calling the Hide method.
</p>
<remark>
The Visible property does not reflect the visibility for a parent control. 
Use the IsVisible method to consider this and get the effective visibility.
</remark>
</descr>
<seealso>
<link id="#lcl.controls.TControl.Visible">TControl.Visible</link>
</seealso>
</element>

<element name="TMaskEdit.OnChange" link="#lcl.stdctrls.TCustomEdit.OnChange"/>
<element name="TMaskEdit.OnClick" link="#lcl.controls.TControl.OnClick"/>
<element name="TMaskEdit.OnDblClick" link="#lcl.controls.TControl.OnDblClick"/>
<element name="TMaskEdit.OnDragDrop" link="#lcl.controls.TControl.OnDragDrop"/>
<element name="TMaskEdit.OnDragOver" link="#lcl.controls.TControl.OnDragOver"/>
<element name="TMaskEdit.OnEditingDone" link="#lcl.controls.TControl.OnEditingDone"/>
<element name="TMaskEdit.OnEndDock" link="#lcl.controls.TControl.OnEndDock"/>
<element name="TMaskEdit.OnEndDrag" link="#lcl.controls.TControl.OnEndDrag"/>
<element name="TMaskEdit.OnEnter" link="#lcl.controls.TWinControl.OnEnter"/>
<element name="TMaskEdit.OnExit" link="#lcl.controls.TWinControl.OnExit"/>

<element name="TMaskEdit.OnKeyDown">
<short>Handles a key down event for the focused control.</short>
<descr>
<p>
<var>OnKeyDown</var> is an event handler signalled when a key is down while 
control has focus.
</p>
<p>
Differs from <link 
id="#lcl.Controls.TWinControl.OnKeyPress">OnKeyPress</link> in that the key 
may have already been down when the control received focus; with 
<var>OnKeyPress</var> the key needs to become pressed while the control has 
focus.
</p>
</descr>
<seealso>
<link id="#lcl.controls.TWinControl.OnKeyDown">TWinControl.OnKeyDown</link>
</seealso>
</element>

<element name="TMaskEdit.OnKeyPress">
<short>Handles a key press event for the focused control.</short>
<descr>
<p>
<var>OnKeyPress</var> is an event handler signalled when a key is pressed 
while the control has focus.
</p>
<p>
Differs from <link id="#lcl.Controls.TWinControl.OnKeyDown">OnKeyDown</link> 
in that the key needs to become pressed while the control has focus; with 
<var>OnKeyDown</var> the key may have already been down when the control 
received focus.
</p>
</descr>
<seealso>
<link id="#lcl.controls.TWinControl.OnKeyPress">TWinControl.OnKeyPress</link>
</seealso>
</element>

<element name="TMaskEdit.OnKeyUp">
<short>Handles a key up event for the focused control.</short>
<descr>
<p>
<var>OnKeyUp</var> is an event handler signalled when a key is released (not 
pressed) while the control has focus.
</p>
<p>
The key may already have been up when the control received focus, or a 
pressed key may become released during the time the control has focus.
</p>
</descr>
<seealso>
<link id="#lcl.controls.TWinControl.OnKeyUp">TWinControl.OnKeyUp</link>
</seealso>
</element>

<element name="TMaskEdit.OnMouseDown" link="#lcl.controls.TControl.OnMouseDown"/>
<element name="TMaskEdit.OnMouseEnter" link="#lcl.controls.TControl.OnMouseEnter"/>
<element name="TMaskEdit.OnMouseLeave" link="#lcl.controls.TControl.OnMouseLeave"/>
<element name="TMaskEdit.OnMouseMove" link="#lcl.controls.TControl.OnMouseMove"/>
<element name="TMaskEdit.OnMouseUp" link="#lcl.controls.TControl.OnMouseUp"/>
<element name="TMaskEdit.OnMouseWheel" link="#lcl.controls.TControl.OnMouseWheel"/>
<element name="TMaskEdit.OnMouseWheelDown" link="#lcl.controls.TControl.OnMouseWheelDown"/>
<element name="TMaskEdit.OnMouseWheelUp" link="#lcl.controls.TControl.OnMouseWheelUp"/>
<element name="TMaskEdit.OnStartDock" link="#lcl.controls.TControl.OnStartDock"/>
<element name="TMaskEdit.OnStartDrag" link="#lcl.controls.TControl.OnStartDrag"/>
<element name="TMaskEdit.OnUTF8KeyPress" link="#lcl.controls.TWinControl.OnUTF8KeyPress"/>
<element name="TMaskEdit.EditMask" link="#lcl.maskedit.TCustomMaskEdit.EditMask"/>

<element name="TMaskEdit.Text">
<short>Contains the value for the control.</short>
<descr>
<p>
<var>Text</var> is a public <var>String</var> property in 
<var>TMaskEdit</var> which provides access to the value for the edit control.
</p>
</descr>
<seealso>
<link id="#lcl.stdctrls.TCustomEdit.Text">TCustomEdit.Text</link>
<link id="#lcl.controls.TControl.Text">TControl.Text</link>
<link id="TCustomMaskEdit.EditText"/>
<link id="TCustomMaskEdit.EditMask"/>
<link id="TCustomMaskEdit.RealGetText"/>
<link id="TCustomMaskEdit.RealSetText"/>
</seealso>
</element>

<element name="TMaskEdit.TextHint" link="#lcl.stdctrls.TCustomEdit.TextHint"/>
<element name="TMaskEdit.SpaceChar" link="#lcl.maskedit.TCustomMaskEdit.SpaceChar"/>

<element name="FormatMaskText">
<short>Applies an edit mask to the specified string value.</short>
<descr>
<p>
<var>FormatMaskText</var> is a <var>String</var> function used to apply an 
edit mask to the specified String value. FormatMaskText creates a temporary 
instance of TCustomMaskEdit that is used to apply the edit mask in 
<var>AEditMask</var> when required. The value in AEditMask is assigned to the
EditMask property in TCustomMaskEdit.
</p>
<p>
The <var>Value</var> argument contains the data without any mask literals, 
escaped characters, or space characters inserted by the editing mask. When 
the IsMasked method in the TCustomMaskEdit returns <b>True</b>, the 
ApplyMaskToText method is used to generate the return value for the routine. To 
maintain Delphi compatibility, the GetTextWithoutSpaceChar is also called to 
translate space characters represented using the character in the mask field to 
the Space character (decimal 32).
</p>
<p>
The <var>EnableSets</var> argument indicates whether set notation, represented  
using '[' and ']' characters, are recognized in the edit mask. The value is 
assigned to the EnableSets property in TMaskEdit/TCustomMaskEdit. When set to 
<b>False</b>, the '[' and ']' characters used in set notation are treated as 
literal characters. When set to <b>True</b>, the optional or required set 
definition is added to the mask. The default value for the property is 
<b>False</b>.
</p>
<p>
When IsMasked is <b>False</b>, the unmodified content in <var>Value</var> is 
used as the return value.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.EditMask"/>
<link id="TCustomMaskEdit.IsMasked"/>
<link id="TCustomMaskEdit.ApplyMaskToText"/>
<link id="TCustomMaskEdit.GetTextWithoutSpaceChar"/>
</seealso>
</element>
<element name="FormatMaskText.Result">
<short>Value after applying the specified mask.</short>
</element>
<element name="FormatMaskText.AEditMask">
<short>Edit mask applied to the specified content.</short>
</element>
<element name="FormatMaskText.Value">
<short>Original content modified in the routine.</short>
</element>
<element name="FormatMaskText.EnableSets">
<short>
Enables or disables set notation in the edit mask.
</short>
</element>

<element name="SplitEditMask">
<short>
Separates fields in the edit mask into the arguments passed to the routine.
</short>
<descr>
<p>
<var>SplitEditMask</var> is a procedure used to separate fields in the edit 
mask into arguments passed to the routine. <var>AEditMask</var> is the 
editing mask with the delimited fields to examine the procedure. If AEditMask 
contains a value like:
</p>
<code>'999.999;0;_'</code>
<p>
The procedure returns the following values in the corresponding arguments:
</p>
<dl>
<dt>
AMaskPart - Mask characters
</dt>
<dd>
'999.999'.
</dd>
<dt>
AMaskSave - Indicates if mask characters are included in the value for a 
control
</dt>
<dd>False. Optional. Default value is <b>True</b>.</dd>
<dt>
ASpaceChar - Character used to represent a space in the masked value
</dt>
<dd>
'_'. Optional. Default value is DefaultBlank. Not relevant when AMaskSave is 
<b>False</b>.
</dd>
</dl>
<p>
SplitEditMask is used in the implementation of the <var>SetEditMask</var> 
method in <var>TCustomMaskEdit</var>.
</p>
</descr>
<seealso>
<link id="TCustomMaskEdit.EditMask"/>
</seealso>
</element>
<element name="SplitEditMask.AEditMask">
<short>Delimited mask specification examined in the method.</short>
</element>
<element name="SplitEditMask.AMaskPart">
<short>Contains the mask characters or literals in the specification.</short>
</element>
<element name="SplitEditMask.AMaskSave">
<short>Indicates if mask data is saved with the value in a control.</short>
</element>
<element name="SplitEditMask.ASpaceChar">
<short>Character representing the Space character in the masked value.</short>
</element>

<element name="Register">
<short>Registers component for use in the Lazarus IDE.</short>
<descr>
<p>
<var>Register</var> is a procedure used to register components in the 
<file>maskedit.pp</file> unit for use in the Lazarus IDE. Register calls 
<var>RegisterComponents</var> to add the <var>TMaskEdit</var> class to the 
<b>Additional</b> tab in the Lazarus IDE.
</p>
</descr>
<seealso>
<link id="TMaskEdit"/>
<link id="#rtl.classes.RegisterComponents">RegisterComponents</link>
</seealso>
</element>

</module>
<!-- MaskEdit -->
</package>
</fpdoc-descriptions>
