protected override WndProc( ref Message m )
{
  // Do whatever here...

  base.WndProc( ref m ); // May or may not need this call.

  // ...or here.
}

Hi Luis,

Yes, normally I agree with Ashot that .Net Winform's WndProc provided a
good place to do some filter/preprocessing for some windows messages. You
may override the control you wanted to customize and override this WndProc
method.

Additionally, .Net Winform control also provided some other methods may be
useful to preprocess messages or keyboard events, such as
ProcessKeyPreview, ProcessKeyMessage, ProcessKeyEventArgs,
ProcessDialogKey, PreProcessMessage, ProcessCmdKey etc.... Many of them are
overridable in child class. Currently, there is no detailed document
regarding which method should be used yet, it may depend on the specific
requirement and scenario.

Anyway, if you have any specific problem of customizing a control, please
feel free to post, we may give it a discuss. Thanks.

Best regards,
Jeffrey Tan
Microsoft Online Community Support
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