CanUndo Property

Gets a value indicating whether the user can undo the previous operation performed in this AnnAutomation.

Syntax

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public virtual bool CanUndo {get;}

'Declaration
 
Public Overridable ReadOnly Property CanUndo As Boolean

'Usage
 
Dim instance As AnnAutomation
Dim value As Boolean
 
value = instance.CanUndo

public virtual bool CanUndo {get;}

 get_CanUndo();

public:
virtual property bool CanUndo {
   bool get();
}

Property Value

true if the user can undo the previous operation performed in this AnnAutomation; otherwise, false.

Remarks

If this property value is true, you can call Undo to undo the previous operation performed in this AnnAutomation. You can use this property to update your user interface; for example, to enable/disable an Undo menu item.

Use the UndoCapacity property to get or set the number of user actions that can be reversed using the Undo method, or re-applied using the Redo method. The default for the UndoCapacity property is 10 actions.

For more information, refer to Undoing WPF Automation Operations.

Please note that the Undo operation does not work for the Realize operation that has been performed with the RealizeRedaction method to realize the entire image.

Example

For C#/VB examples, refer to UndoRedoChanged.

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

AnnAutomation Class
AnnAutomation Members