Form.DefWndProc(Message) Method   
Definition
Important
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Sends the specified message to the default window procedure.
protected:
 override void DefWndProc(System::Windows::Forms::Message % m);protected override void DefWndProc(ref System.Windows.Forms.Message m);override this.DefWndProc : Message -> unitProtected Overrides Sub DefWndProc (ByRef m As Message)