Leadtools.WinForms Namespace > RasterThumbnailBrowser Class : OnDrawItem Method |
protected virtual void OnDrawItem( RasterImageListDrawItemEventArgs e )
'Declaration Protected Overridable Sub OnDrawItem( _ ByVal e As RasterImageListDrawItemEventArgs _ )
'Usage Dim instance As RasterThumbnailBrowser Dim e As RasterImageListDrawItemEventArgs instance.OnDrawItem(e)
protected virtual void OnDrawItem( RasterImageListDrawItemEventArgs e )
function Leadtools.WinForms.RasterThumbnailBrowser.OnDrawItem( e )
protected: virtual void OnDrawItem( RasterImageListDrawItemEventArgs^ e )
Raising an event invokes the event handler through a delegate.
The OnDrawItem 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 OnDrawItem in a derived class, be sure to call the base class's OnDrawItem method so that registered delegates receive the event.
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