Control.ReflectMessage Method (IntPtr, Message)
Reflects the specified message to the control that is bound to the specified handle.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
Return ValueType: System.Boolean
true if the message was reflected; otherwise, false.
Themethod is an infrastructure method and typically should not be called from your code.
If the hWnd parameter does not represent a valid control, themethod returns false.
Because Windows messages are returned to the top-level window, themethod is used to propagate the return message to the control that sent the message.
Available since 1.1