How to implement inherited for CM_DIALOGKEY

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#6053

From: Blue Knight
Date: Mon, 13 Jun 2005 10:40

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Hi all,

I have a message handler in my form for CM_DIALOGKEY, in order to trap 
TAB.  However, if the current Control is not one of two, then I want to 
perform the default action - how can I do that?  In Delphi you can use 
inherited, but I don't know what the equivalent is in C++.

eg.

class TMyForm : public TForm
{
...
protected:
   void __fastcall CMDialogKey(TMessage msg);

BEGIN_MESSAGE_MAP
   MESSAGE_HANDLER(CM_DIALOGKEY, TMessage, CMDialogKey)
END_MESSAGE_MAP(TForm);
};


void __fastcall TMyForm::CMDialogKey(TMessage msg)
{
// Control1 and Control2 are controls on the form
   if(ActiveControl == Control1 || ActiveControl == Control2)
   {
     if(msg.WParam == VK_TAB)
     {
       // Do special handling here
       msg.Result = 1;
       return;
     }
   }

   // What do I need to do here?
}

I have tried Perform(...) and TForm::Perform(...), but both result in a 
stack overflow, for obvious reasons.


Regards,

Bevan

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