Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!asuvax!ncar!gatech!hubcap!jcocon
From: jcocon@hubcap.clemson.edu (james c oconnor)
Newsgroups: comp.sys.mac.programmer
Subject: Dialog Filter - blocking returns
Message-ID: <1991Jun19.203617.553@hubcap.clemson.edu>
Date: 19 Jun 91 20:36:17 GMT
Organization: Clemson University
Lines: 35


I am writing a dialog filter routine which checks the condition of the
default button.  If the button is hilited 255 then the return is
converted to a tab.  One problem, it doesn't work.  Here is the code:

pascal Boolean ReturnFilter(DialogPtr dlog,EventRecord *event,int *hit) 
{
	char		c;
	ControlHandle	Hndl;
	int		type;
	Rect		r;

	if (event->what == keyDown || event->what == autoKey){
		if ((c=event->message & charCodeMask)==CR || c==ENTER){
			GetDItem(dlog,1,&type,&Hndl,&r);
			if (!(*Hndl)->contrlHilite){
				event->message &= ~0xFF;
				event->message |= TAB;
				c = TAB;
			}
		}
		if (c == CR || c == ENTER){
			*hit = 1;
			return TRUE;
		}
	}
	return FALSE;
}

TAB, ENTER, and CR are all #defined to be 0x??, and should work since
they do in a much more elaborate filter I wrote which does this very
thing, plus a whole bunch.

Thanks
Jim