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OnBeforeDrawingObjects Method
See Also 
Leadtools.Annotations Namespace > AnnContainer Class : OnBeforeDrawingObjects Method



e
An RasterCollection<AnnPaintEventArgs> that contains the event data.
e
An RasterCollection<AnnPaintEventArgs> that contains the event data.
Raises the BeforeDrawingObjects event.

Syntax

Visual Basic (Declaration) 
Protected Overridable Sub OnBeforeDrawingObjects( _
   ByVal e As AnnPaintEventArgs _
)
Visual Basic (Usage)Copy Code
Dim instance As AnnContainer
Dim e As AnnPaintEventArgs
 
instance.OnBeforeDrawingObjects(e)
C# 
protected virtual void OnBeforeDrawingObjects( 
   AnnPaintEventArgs e
)
C++/CLI 
protected:
virtual void OnBeforeDrawingObjects( 
   AnnPaintEventArgs^ e
)

Parameters

e
An RasterCollection<AnnPaintEventArgs> that contains the event data.

Example

For an example, refer to BeforeDrawingObjects.

Remarks

Raising an event invokes the event handler through a delegate. The OnBeforeDrawingObjects method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class. Notes to Inheritors: When overriding OnBeforeDrawingObjects in a derived class, be sure to call the base class's OnBeforeDrawingObjects method so that registered delegates receive the event.

Requirements

Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family

See Also

Leadtools.Annotations requires a Document or Medical toolkit license and unlock key. For more information, refer to: Imaging Pro/Document/Medical Features