Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!mips!apple!stevec
From: stevec@Apple.COM (Steve Christensen)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Getting resource template ID from Control Handle
Message-ID: <54323@apple.Apple.COM>
Date: 25 Jun 91 22:28:00 GMT
References: <1991Jun25.150157.910@potomac.ads.com>
Organization: Apple Computer Inc., Cupertino, CA
Lines: 47

jtn@potomac.ads.com (John T. Nelson) writes:
>[...that he has a dialog with a mixture of controls and text that the user
> can click on.  He's calling FindControl to figure out who got clicked on,
> but it returns a ControlHandle and not a dialog item number.  So, he
> wonders how he can get the dialog item number of which control was hit...]

Well, amazingly, the answer is in the Dialog Manager chapter of Inside Mac,
volume I.  If it's a modal dialog, do something like this:

	myDialog = GetNewDialog(...);
	do {
	  ModalDialog(nil, &itemHit);	// wait for user to click on an item
	  switch (itemHit) {		// do item-specific stuff
	    case xxx:
	    ...
	  }
	} while (itemHit != OKitem);	// wait until user clicks "OK"
	DisposDialog(myDialog);

ModalDialog tracks simple buttons and checkboxes correctly (however you may
have to handle scrollbars specially), and stuffs keypresses into the active
edit item.  You get control back every time a mouse clicks on an enabled
dialog item, or a key is hit and there is an active edit item.

If you have a non-modal dialog, you can do something similar to the above in
your main event loop:

	if (GetNextEvent(EveryEvent, &myEvent)) {
	...
	  if (IsDialogEvent(&myEvent))
	    if (DialogSelect(&myEvent, &whichDialog, &itemHit)) {
	      switch (itemHit) {
	        case xxx:
	        ...
	      }
	    }
	}
	...

In any case, pick up IM vol I and peruse the Dialog Manager chapter..

steve

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  Steve Christensen			Never hit a man with glasses.
  stevec@apple.com			Hit him with a baseball bat.