| LEADTOOLS Annotations (Leadtools.Annotations assembly) | Send comments on this topic. | Back to Introduction - All Topics | Help Version 17.0.3.29 |
| CurrentDesignerChanged Event | |
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| Leadtools.Annotations Namespace > AnnAutomation Class : CurrentDesignerChanged Event |
The CurrentDesignerChanged Event is available in LEADTOOLS Document and Medical Imaging toolkits.
Occurs when the current designer has changed.Syntax| Visual Basic (Declaration) | |
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Public Event CurrentDesignerChanged As EventHandler | |
| Visual Basic (Usage) |  Copy Code |
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Dim instance As AnnAutomation Dim handler As EventHandler AddHandler instance.CurrentDesignerChanged, handler | |
| C# | |
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public event EventHandler CurrentDesignerChanged | |
| C++/CLI | |
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public: event EventHandler^ CurrentDesignerChanged | |
ExampleRemarksAt any given time, the AnnAutomation can have a working AnnDesigner derived object as follows:
| Designer Base Class | Notes |
|---|---|
| null (Nothing in Visual Basic) | (Design and Run user mode) no designer is currently active. |
| AnnDrawDesigner | (Design user mode) The AnnAutomation is currently drawing or about to draw a new object |
| AnnEditDesigner | (Design user mode) One or more objects are currently being edited or are about to be edited |
| AnnRunDesigner | (Run user mode) An object is currently being run or about to be run |
This property allows you to hook into the current designer and change or monitor its status while it is running. For example, you can determine if CurrentDesigner is an AnnDrawDesigner derived class and subscribe to the AnnDrawDesigner.Draw event and so forth.
RequirementsTarget Platforms: Microsoft .NET Framework 2.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7
See Also