The AutomationPaint Event is available in LEADTOOLS Document and Medical Imaging toolkits.
An event that triggers whenever the surface of the control is invalidated
Syntax
| Visual Basic (Declaration) | |
|---|---|
Event AutomationPaint As PaintEventHandler | |
| Visual Basic (Usage) |  Copy Code |
|---|---|
Dim instance As IAnnAutomationControl Dim handler As PaintEventHandler AddHandler instance.AutomationPaint, handler | |
| C# | |
|---|---|
event PaintEventHandler AutomationPaint | |
| C++/CLI | |
|---|---|
event PaintEventHandler^ AutomationPaint | |
Event Data
The event handler receives an argument of type PaintEventArgs containing data related to this event. The following PaintEventArgs properties provide information specific to this event.
| Property | Description |
|---|---|
| ClipRectangle | Gets the rectangle in which to paint. |
| Graphics | Gets the graphics used to paint. |
Example
Remarks
The automation control will then automatically use the values of the event arguments to draw the annotations objects. In most cases, you simply have to trigger this event in your control System.Windows.Forms.Control.Paint event or System.Windows.Forms.Control.OnPaint method and pass the same arguments (of type System.Windows.Forms.PaintEventArgs) to IAnnAutomationControl.AutomationPaint.
Requirements
Target Platforms: Microsoft .NET Framework 2.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7