System.Windows.Forms 1.0.5000.0 2.0.0.0 The class implements this interface internally. Defines the communication layer between a control and the Win32 API. Method System.Void The method is called when the window handle of the control has changed. Sets the handle of the to the specified handle. The new handle of the . 1.0.5000.0 2.0.0.0 Method System.Void To be added. To be added. To be added. 1.0.5000.0 2.0.0.0