Adds a handler that is called when data for the specified format is requested

C# | Visual Basic | Visual C++ |
public void AddHandler( DragSource..::..DataLookupHandler handler, string format )
Public Sub AddHandler ( _ handler As DragSource..::..DataLookupHandler, _ format As String _ )
public: void AddHandler( DragSource..::..DataLookupHandler^ handler, String^ format )

- handler (DragSource..::..DataLookupHandler)
- format (String)