Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / wpf / src / UIAutomation / UIAutomationClient / System / Windows / Automation / TextPattern.cs / 1 / TextPattern.cs
//----------------------------------------------------------------------------
//
//
// Copyright (C) Microsoft Corporation. All rights reserved.
//
//
//
// Description: Client-side wrapper for Text pattern
//
// History:
// 08/01/2003 : Micw Ported to WCP
// 02/09/2004 : a-davidj rewrote for Text Pattern redesign.
//
//---------------------------------------------------------------------------
using System;
using System.Diagnostics;
using System.Security.Permissions;
using System.Windows.Automation.Provider;
using System.Windows.Automation.Text;
using MS.Internal.Automation;
namespace System.Windows.Automation
{
///
/// Purpose:
/// The TextPattern object is what you get back when you ask an element for text pattern.
/// Example usages:
/// It is the Interface that represents text like an edit control. This pretty
/// much means any UI elements that contain text.
///
#if (INTERNAL_COMPILE)
internal class TextPattern: BasePattern
#else
public class TextPattern: BasePattern
#endif
{
#region Constructors
internal TextPattern(AutomationElement el, SafePatternHandle hPattern)
: base(el, hPattern)
{
Debug.Assert(el != null);
Debug.Assert(!hPattern.IsInvalid);
_hPattern = hPattern;
_element = el;
}
#endregion Constructors
//-----------------------------------------------------
//
// Public Constants / Readonly Fields
//
//-----------------------------------------------------
#region Public Constants and Readonly Fields
///
/// Indicates that a text attribute varies over a range.
///
public static readonly object MixedAttributeValue = TextPatternIdentifiers.MixedAttributeValue;
#region TextAttribute
// IMPORTANT: if you add or remove AutomationTextAttributes be sure to make the corresponding changes in
// AutomationComInteropProvider.cs' AutomationConstants struct and AutomationComInteropProvider.InitializeConstants.
/// Type of animation applied from AnimationStyle enum.
public static readonly AutomationTextAttribute AnimationStyleAttribute = TextPatternIdentifiers.AnimationStyleAttribute;
/// Background color as a 32-bit Win32 COLORREF.
public static readonly AutomationTextAttribute BackgroundColorAttribute = TextPatternIdentifiers.BackgroundColorAttribute;
/// Bullet style from BulletStyle enum.
public static readonly AutomationTextAttribute BulletStyleAttribute = TextPatternIdentifiers.BulletStyleAttribute;
/// Cap style from CapStyle enum.
public static readonly AutomationTextAttribute CapStyleAttribute = TextPatternIdentifiers.CapStyleAttribute;
/// CultureInfo of the character down to sub-language level, e.g. Swiss French instead of French. See the CultureInfo in
/// .NET Framework for more detail on the language code format. Clients should note that there may be many cases where the
/// Language of the character defaults to application UI language because many servers do not support language tag and,
/// even when supported, authors may not use it.
public static readonly AutomationTextAttribute CultureAttribute = TextPatternIdentifiers.CultureAttribute;
/// Non-localized string that represents font face in TrueType. Providers can supply their own.
/// Examples include “Arial Black” and “Arial Narrow”.
public static readonly AutomationTextAttribute FontNameAttribute = TextPatternIdentifiers.FontNameAttribute;
/// Point size of the character as a double.
public static readonly AutomationTextAttribute FontSizeAttribute = TextPatternIdentifiers.FontSizeAttribute;
/// Thickness of font as an int. This is modeled after the lfWeight field in GDI LOGFONT. For consistency, the following values
/// have been adopted from LOGFONT:0=DontCare, 100=Thin, 200=ExtraLight or UltraLight, 300=Light, 400=Normal or Regular,
/// 500=Medium, 600=SemiBold or DemiBold, 700=Bold, 800=ExtraBold or UltraBold, and 900=Heavy or Black.
public static readonly AutomationTextAttribute FontWeightAttribute = TextPatternIdentifiers.FontWeightAttribute;
/// Color of the text as a 32-bit Win32 COLORREF.
public static readonly AutomationTextAttribute ForegroundColorAttribute = TextPatternIdentifiers.ForegroundColorAttribute;
/// Horizontal alignment from HorizontalTextAlignment enum.
public static readonly AutomationTextAttribute HorizontalTextAlignmentAttribute = TextPatternIdentifiers.HorizontalTextAlignmentAttribute;
/// First-line indentation in points as a double.
public static readonly AutomationTextAttribute IndentationFirstLineAttribute = TextPatternIdentifiers.IndentationFirstLineAttribute;
/// Leading indentation in points as a double.
public static readonly AutomationTextAttribute IndentationLeadingAttribute = TextPatternIdentifiers.IndentationLeadingAttribute;
/// Trailing indentation in points as a double.
public static readonly AutomationTextAttribute IndentationTrailingAttribute = TextPatternIdentifiers.IndentationTrailingAttribute;
/// Is the text hidden? Boolean.
public static readonly AutomationTextAttribute IsHiddenAttribute = TextPatternIdentifiers.IsHiddenAttribute;
/// Is the character italicized? Boolean.
public static readonly AutomationTextAttribute IsItalicAttribute = TextPatternIdentifiers.IsItalicAttribute;
/// Is the character read-only? If a document/file is read-only, but you can still edit it and save it as another file,
/// the text inside is considered not read-only. Boolean.
public static readonly AutomationTextAttribute IsReadOnlyAttribute = TextPatternIdentifiers.IsReadOnlyAttribute;
/// Is the character a sub-script? Boolean.
public static readonly AutomationTextAttribute IsSubscriptAttribute = TextPatternIdentifiers.IsSubscriptAttribute;
/// Is the character a super-script? Boolean.
public static readonly AutomationTextAttribute IsSuperscriptAttribute = TextPatternIdentifiers.IsSuperscriptAttribute;
/// Bottom margin in points as a double.
public static readonly AutomationTextAttribute MarginBottomAttribute = TextPatternIdentifiers.MarginBottomAttribute;
/// Leading margin in points as a double.
public static readonly AutomationTextAttribute MarginLeadingAttribute = TextPatternIdentifiers.MarginLeadingAttribute;
/// Top margin in points as a double.
public static readonly AutomationTextAttribute MarginTopAttribute = TextPatternIdentifiers.MarginTopAttribute;
/// Trailing margin in points as a double.
public static readonly AutomationTextAttribute MarginTrailingAttribute = TextPatternIdentifiers.MarginTrailingAttribute;
/// Outline style from OutlineStyles enum.
public static readonly AutomationTextAttribute OutlineStylesAttribute = TextPatternIdentifiers.OutlineStylesAttribute;
/// Color of the overline as a Win32 COLORREF. This attribute may not be available if the color is
/// always the same as the foreground color.
public static readonly AutomationTextAttribute OverlineColorAttribute = TextPatternIdentifiers.OverlineColorAttribute;
/// Overline style from TextDecorationLineStyle enum.
public static readonly AutomationTextAttribute OverlineStyleAttribute = TextPatternIdentifiers.OverlineStyleAttribute;
/// Color of the strikethrough as a Win32 COLORREF. This attribute may not be available if the color is
/// always the same as the foreground color.
public static readonly AutomationTextAttribute StrikethroughColorAttribute = TextPatternIdentifiers.StrikethroughColorAttribute;
/// Strikethrough style from TextDecorationLineStyle enum.
public static readonly AutomationTextAttribute StrikethroughStyleAttribute = TextPatternIdentifiers.StrikethroughStyleAttribute;
/// The set of tabs in points relative to the leading margin. Array of double.
public static readonly AutomationTextAttribute TabsAttribute = TextPatternIdentifiers.TabsAttribute;
/// Text flow direction from FlowDirection flags enum.
public static readonly AutomationTextAttribute TextFlowDirectionsAttribute = TextPatternIdentifiers.TextFlowDirectionsAttribute;
/// Color of the underline as a Win32 COLORREF. This attribute may not be available if the color is
/// always the same as the foreground color.
public static readonly AutomationTextAttribute UnderlineColorAttribute = TextPatternIdentifiers.UnderlineColorAttribute;
/// Underline style from TextDecorationLineStyle enum.
public static readonly AutomationTextAttribute UnderlineStyleAttribute = TextPatternIdentifiers.UnderlineStyleAttribute;
#endregion TextAttribute
#region Patterns & Events
/// Text pattern
public static readonly AutomationPattern Pattern = TextPatternIdentifiers.Pattern;
///
/// Event ID: TextSelectionChangedEvent
/// When: Sent to the event handler when the selection changes.
///
public static readonly AutomationEvent TextSelectionChangedEvent =
TextPatternIdentifiers.TextSelectionChangedEvent;
///
/// Event ID: TextChangedEvent
/// When: Sent to the event handler when text changes.
///
public static readonly AutomationEvent TextChangedEvent =
TextPatternIdentifiers.TextChangedEvent;
#endregion Patterns & Events
#endregion Public Constants and Readonly Fields
//------------------------------------------------------
//
// Public Methods
//
//-----------------------------------------------------
#region Public Methods
///
/// Retrieves the current selection.
///
/// The range of text that is selected, or possibly null if there is
/// no selection.
public TextPatternRange [] GetSelection()
{
SafeTextRangeHandle [] hTextRanges = UiaCoreApi.TextPattern_GetSelection(_hPattern);
return TextPatternRange.Wrap(hTextRanges, this);
}
///
/// Retrieves the visible range within the container
///
/// The range of text that is visible within the container. Note that the
/// text of the range could be obscured by an overlapping window. Also, portions
/// of the range at the beginning, in the middle, or at the end may not be visible
/// because they are scrolled off to the side.
public TextPatternRange [] GetVisibleRanges()
{
SafeTextRangeHandle [] hTextRanges = UiaCoreApi.TextPattern_GetVisibleRanges(_hPattern);
return TextPatternRange.Wrap(hTextRanges, this);
}
///
/// Retrieves the range of a child object.
///
/// The child element. If the element is not
/// a child of the text container then an InvalidOperation exception is
/// thrown.
/// A range that spans the child element.
public TextPatternRange RangeFromChild(AutomationElement childElement)
{
if (childElement == null)
{
throw new ArgumentNullException("childElement");
}
SafeTextRangeHandle hTextRange = UiaCoreApi.TextPattern_RangeFromChild(_hPattern, childElement.RawNode);
return TextPatternRange.Wrap(hTextRange, this);
}
///
/// Finds the range nearest to a screen coordinate.
/// If the coordinate is within the bounding rectangle of a character then the
/// range will contain that character. Otherwise, it will be a degenerate
/// range near the point, chosen in an implementation-dependent manner.
/// An InvalidOperation exception is thrown if the point is outside of the
/// client area of the text container.
///
/// The location in screen coordinates.
/// A degenerate range nearest the specified location.
public TextPatternRange RangeFromPoint(Point screenLocation)
{
//If we are not within the client area throw an exception
Rect rect = (Rect)_element.GetCurrentPropertyValue(AutomationElement.BoundingRectangleProperty);
if (screenLocation.X < rect.Left || screenLocation.X >= rect.Right || screenLocation.Y < rect.Top || screenLocation.Y >= rect.Bottom)
{
throw new ArgumentException(SR.Get(SRID.ScreenCoordinatesOutsideBoundingRect));
}
SafeTextRangeHandle hTextRange = UiaCoreApi.TextPattern_RangeFromPoint(_hPattern, screenLocation);
return TextPatternRange.Wrap(hTextRange, this);
}
#endregion Public Methods
//------------------------------------------------------
//
// Public Properties
//
//------------------------------------------------------
#region Public Properties
///
/// A text range that encloses the main text of the document. Some auxillary text such as
/// headers, footnotes, or annotations may not be included.
///
public TextPatternRange DocumentRange
{
get
{
SafeTextRangeHandle hTextRange = UiaCoreApi.TextPattern_get_DocumentRange(_hPattern);
return TextPatternRange.Wrap(hTextRange, this);
}
}
///
/// True if the text container supports text selection. If it does then
/// you may use the GetSelection and TextPatternRange.Select methods.
///
public SupportedTextSelection SupportedTextSelection
{
get
{
return UiaCoreApi.TextPattern_get_SupportedTextSelection(_hPattern);
}
}
#endregion Public Properties
//-----------------------------------------------------
//
// Internal Methods
//
//------------------------------------------------------
#region Internal Methods
static internal object Wrap(AutomationElement el, SafePatternHandle hPattern, bool cached)
{
if (hPattern.IsInvalid)
{
throw new InvalidOperationException(SR.Get(SRID.CantPrefetchTextPattern));
}
return new TextPattern(el, hPattern);
}
// compare two text patterns and return true if they are from the same logical element.
static internal bool Compare(TextPattern t1, TextPattern t2)
{
return Misc.Compare(t1._element, t2._element);
}
#endregion Internal Methods
//-----------------------------------------------------
//
// Private Fields
//
//-----------------------------------------------------
#region Private Fields
private SafePatternHandle _hPattern;
private AutomationElement _element;
#endregion Private Fields
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
//----------------------------------------------------------------------------
//
//
// Copyright (C) Microsoft Corporation. All rights reserved.
//
//
//
// Description: Client-side wrapper for Text pattern
//
// History:
// 08/01/2003 : Micw Ported to WCP
// 02/09/2004 : a-davidj rewrote for Text Pattern redesign.
//
//---------------------------------------------------------------------------
using System;
using System.Diagnostics;
using System.Security.Permissions;
using System.Windows.Automation.Provider;
using System.Windows.Automation.Text;
using MS.Internal.Automation;
namespace System.Windows.Automation
{
///
/// Purpose:
/// The TextPattern object is what you get back when you ask an element for text pattern.
/// Example usages:
/// It is the Interface that represents text like an edit control. This pretty
/// much means any UI elements that contain text.
///
#if (INTERNAL_COMPILE)
internal class TextPattern: BasePattern
#else
public class TextPattern: BasePattern
#endif
{
#region Constructors
internal TextPattern(AutomationElement el, SafePatternHandle hPattern)
: base(el, hPattern)
{
Debug.Assert(el != null);
Debug.Assert(!hPattern.IsInvalid);
_hPattern = hPattern;
_element = el;
}
#endregion Constructors
//-----------------------------------------------------
//
// Public Constants / Readonly Fields
//
//-----------------------------------------------------
#region Public Constants and Readonly Fields
///
/// Indicates that a text attribute varies over a range.
///
public static readonly object MixedAttributeValue = TextPatternIdentifiers.MixedAttributeValue;
#region TextAttribute
// IMPORTANT: if you add or remove AutomationTextAttributes be sure to make the corresponding changes in
// AutomationComInteropProvider.cs' AutomationConstants struct and AutomationComInteropProvider.InitializeConstants.
/// Type of animation applied from AnimationStyle enum.
public static readonly AutomationTextAttribute AnimationStyleAttribute = TextPatternIdentifiers.AnimationStyleAttribute;
/// Background color as a 32-bit Win32 COLORREF.
public static readonly AutomationTextAttribute BackgroundColorAttribute = TextPatternIdentifiers.BackgroundColorAttribute;
/// Bullet style from BulletStyle enum.
public static readonly AutomationTextAttribute BulletStyleAttribute = TextPatternIdentifiers.BulletStyleAttribute;
/// Cap style from CapStyle enum.
public static readonly AutomationTextAttribute CapStyleAttribute = TextPatternIdentifiers.CapStyleAttribute;
/// CultureInfo of the character down to sub-language level, e.g. Swiss French instead of French. See the CultureInfo in
/// .NET Framework for more detail on the language code format. Clients should note that there may be many cases where the
/// Language of the character defaults to application UI language because many servers do not support language tag and,
/// even when supported, authors may not use it.
public static readonly AutomationTextAttribute CultureAttribute = TextPatternIdentifiers.CultureAttribute;
/// Non-localized string that represents font face in TrueType. Providers can supply their own.
/// Examples include “Arial Black” and “Arial Narrow”.
public static readonly AutomationTextAttribute FontNameAttribute = TextPatternIdentifiers.FontNameAttribute;
/// Point size of the character as a double.
public static readonly AutomationTextAttribute FontSizeAttribute = TextPatternIdentifiers.FontSizeAttribute;
/// Thickness of font as an int. This is modeled after the lfWeight field in GDI LOGFONT. For consistency, the following values
/// have been adopted from LOGFONT:0=DontCare, 100=Thin, 200=ExtraLight or UltraLight, 300=Light, 400=Normal or Regular,
/// 500=Medium, 600=SemiBold or DemiBold, 700=Bold, 800=ExtraBold or UltraBold, and 900=Heavy or Black.
public static readonly AutomationTextAttribute FontWeightAttribute = TextPatternIdentifiers.FontWeightAttribute;
/// Color of the text as a 32-bit Win32 COLORREF.
public static readonly AutomationTextAttribute ForegroundColorAttribute = TextPatternIdentifiers.ForegroundColorAttribute;
/// Horizontal alignment from HorizontalTextAlignment enum.
public static readonly AutomationTextAttribute HorizontalTextAlignmentAttribute = TextPatternIdentifiers.HorizontalTextAlignmentAttribute;
/// First-line indentation in points as a double.
public static readonly AutomationTextAttribute IndentationFirstLineAttribute = TextPatternIdentifiers.IndentationFirstLineAttribute;
/// Leading indentation in points as a double.
public static readonly AutomationTextAttribute IndentationLeadingAttribute = TextPatternIdentifiers.IndentationLeadingAttribute;
/// Trailing indentation in points as a double.
public static readonly AutomationTextAttribute IndentationTrailingAttribute = TextPatternIdentifiers.IndentationTrailingAttribute;
/// Is the text hidden? Boolean.
public static readonly AutomationTextAttribute IsHiddenAttribute = TextPatternIdentifiers.IsHiddenAttribute;
/// Is the character italicized? Boolean.
public static readonly AutomationTextAttribute IsItalicAttribute = TextPatternIdentifiers.IsItalicAttribute;
/// Is the character read-only? If a document/file is read-only, but you can still edit it and save it as another file,
/// the text inside is considered not read-only. Boolean.
public static readonly AutomationTextAttribute IsReadOnlyAttribute = TextPatternIdentifiers.IsReadOnlyAttribute;
/// Is the character a sub-script? Boolean.
public static readonly AutomationTextAttribute IsSubscriptAttribute = TextPatternIdentifiers.IsSubscriptAttribute;
/// Is the character a super-script? Boolean.
public static readonly AutomationTextAttribute IsSuperscriptAttribute = TextPatternIdentifiers.IsSuperscriptAttribute;
/// Bottom margin in points as a double.
public static readonly AutomationTextAttribute MarginBottomAttribute = TextPatternIdentifiers.MarginBottomAttribute;
/// Leading margin in points as a double.
public static readonly AutomationTextAttribute MarginLeadingAttribute = TextPatternIdentifiers.MarginLeadingAttribute;
/// Top margin in points as a double.
public static readonly AutomationTextAttribute MarginTopAttribute = TextPatternIdentifiers.MarginTopAttribute;
/// Trailing margin in points as a double.
public static readonly AutomationTextAttribute MarginTrailingAttribute = TextPatternIdentifiers.MarginTrailingAttribute;
/// Outline style from OutlineStyles enum.
public static readonly AutomationTextAttribute OutlineStylesAttribute = TextPatternIdentifiers.OutlineStylesAttribute;
/// Color of the overline as a Win32 COLORREF. This attribute may not be available if the color is
/// always the same as the foreground color.
public static readonly AutomationTextAttribute OverlineColorAttribute = TextPatternIdentifiers.OverlineColorAttribute;
/// Overline style from TextDecorationLineStyle enum.
public static readonly AutomationTextAttribute OverlineStyleAttribute = TextPatternIdentifiers.OverlineStyleAttribute;
/// Color of the strikethrough as a Win32 COLORREF. This attribute may not be available if the color is
/// always the same as the foreground color.
public static readonly AutomationTextAttribute StrikethroughColorAttribute = TextPatternIdentifiers.StrikethroughColorAttribute;
/// Strikethrough style from TextDecorationLineStyle enum.
public static readonly AutomationTextAttribute StrikethroughStyleAttribute = TextPatternIdentifiers.StrikethroughStyleAttribute;
/// The set of tabs in points relative to the leading margin. Array of double.
public static readonly AutomationTextAttribute TabsAttribute = TextPatternIdentifiers.TabsAttribute;
/// Text flow direction from FlowDirection flags enum.
public static readonly AutomationTextAttribute TextFlowDirectionsAttribute = TextPatternIdentifiers.TextFlowDirectionsAttribute;
/// Color of the underline as a Win32 COLORREF. This attribute may not be available if the color is
/// always the same as the foreground color.
public static readonly AutomationTextAttribute UnderlineColorAttribute = TextPatternIdentifiers.UnderlineColorAttribute;
/// Underline style from TextDecorationLineStyle enum.
public static readonly AutomationTextAttribute UnderlineStyleAttribute = TextPatternIdentifiers.UnderlineStyleAttribute;
#endregion TextAttribute
#region Patterns & Events
/// Text pattern
public static readonly AutomationPattern Pattern = TextPatternIdentifiers.Pattern;
///
/// Event ID: TextSelectionChangedEvent
/// When: Sent to the event handler when the selection changes.
///
public static readonly AutomationEvent TextSelectionChangedEvent =
TextPatternIdentifiers.TextSelectionChangedEvent;
///
/// Event ID: TextChangedEvent
/// When: Sent to the event handler when text changes.
///
public static readonly AutomationEvent TextChangedEvent =
TextPatternIdentifiers.TextChangedEvent;
#endregion Patterns & Events
#endregion Public Constants and Readonly Fields
//------------------------------------------------------
//
// Public Methods
//
//-----------------------------------------------------
#region Public Methods
///
/// Retrieves the current selection.
///
/// The range of text that is selected, or possibly null if there is
/// no selection.
public TextPatternRange [] GetSelection()
{
SafeTextRangeHandle [] hTextRanges = UiaCoreApi.TextPattern_GetSelection(_hPattern);
return TextPatternRange.Wrap(hTextRanges, this);
}
///
/// Retrieves the visible range within the container
///
/// The range of text that is visible within the container. Note that the
/// text of the range could be obscured by an overlapping window. Also, portions
/// of the range at the beginning, in the middle, or at the end may not be visible
/// because they are scrolled off to the side.
public TextPatternRange [] GetVisibleRanges()
{
SafeTextRangeHandle [] hTextRanges = UiaCoreApi.TextPattern_GetVisibleRanges(_hPattern);
return TextPatternRange.Wrap(hTextRanges, this);
}
///
/// Retrieves the range of a child object.
///
/// The child element. If the element is not
/// a child of the text container then an InvalidOperation exception is
/// thrown.
/// A range that spans the child element.
public TextPatternRange RangeFromChild(AutomationElement childElement)
{
if (childElement == null)
{
throw new ArgumentNullException("childElement");
}
SafeTextRangeHandle hTextRange = UiaCoreApi.TextPattern_RangeFromChild(_hPattern, childElement.RawNode);
return TextPatternRange.Wrap(hTextRange, this);
}
///
/// Finds the range nearest to a screen coordinate.
/// If the coordinate is within the bounding rectangle of a character then the
/// range will contain that character. Otherwise, it will be a degenerate
/// range near the point, chosen in an implementation-dependent manner.
/// An InvalidOperation exception is thrown if the point is outside of the
/// client area of the text container.
///
/// The location in screen coordinates.
/// A degenerate range nearest the specified location.
public TextPatternRange RangeFromPoint(Point screenLocation)
{
//If we are not within the client area throw an exception
Rect rect = (Rect)_element.GetCurrentPropertyValue(AutomationElement.BoundingRectangleProperty);
if (screenLocation.X < rect.Left || screenLocation.X >= rect.Right || screenLocation.Y < rect.Top || screenLocation.Y >= rect.Bottom)
{
throw new ArgumentException(SR.Get(SRID.ScreenCoordinatesOutsideBoundingRect));
}
SafeTextRangeHandle hTextRange = UiaCoreApi.TextPattern_RangeFromPoint(_hPattern, screenLocation);
return TextPatternRange.Wrap(hTextRange, this);
}
#endregion Public Methods
//------------------------------------------------------
//
// Public Properties
//
//------------------------------------------------------
#region Public Properties
///
/// A text range that encloses the main text of the document. Some auxillary text such as
/// headers, footnotes, or annotations may not be included.
///
public TextPatternRange DocumentRange
{
get
{
SafeTextRangeHandle hTextRange = UiaCoreApi.TextPattern_get_DocumentRange(_hPattern);
return TextPatternRange.Wrap(hTextRange, this);
}
}
///
/// True if the text container supports text selection. If it does then
/// you may use the GetSelection and TextPatternRange.Select methods.
///
public SupportedTextSelection SupportedTextSelection
{
get
{
return UiaCoreApi.TextPattern_get_SupportedTextSelection(_hPattern);
}
}
#endregion Public Properties
//-----------------------------------------------------
//
// Internal Methods
//
//------------------------------------------------------
#region Internal Methods
static internal object Wrap(AutomationElement el, SafePatternHandle hPattern, bool cached)
{
if (hPattern.IsInvalid)
{
throw new InvalidOperationException(SR.Get(SRID.CantPrefetchTextPattern));
}
return new TextPattern(el, hPattern);
}
// compare two text patterns and return true if they are from the same logical element.
static internal bool Compare(TextPattern t1, TextPattern t2)
{
return Misc.Compare(t1._element, t2._element);
}
#endregion Internal Methods
//-----------------------------------------------------
//
// Private Fields
//
//-----------------------------------------------------
#region Private Fields
private SafePatternHandle _hPattern;
private AutomationElement _element;
#endregion Private Fields
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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