Form.ProcessKeyPreview(Message) Method   
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Previews a keyboard message.
protected:
 override bool ProcessKeyPreview(System::Windows::Forms::Message % m);protected override bool ProcessKeyPreview(ref System.Windows.Forms.Message m);override this.ProcessKeyPreview : Message -> boolProtected Overrides Function ProcessKeyPreview (ByRef m As Message) As BooleanParameters
Returns
true if the message was processed by the control; otherwise, false.