Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!apple!daveg
From: daveg@Apple.COM (David Green)
Newsgroups: comp.sys.mac.programmer
Subject: GlobalToLocal fails
Message-ID: <35161@apple.Apple.COM>
Date: 1 Oct 89 20:49:22 GMT
Reply-To: daveg@apple.com (David Green)
Distribution: usa
Organization: Apple Computer Inc, Cupertino, CA
Lines: 38

I'm having trouble using GlobalToLocal in a simple desk Accessory I'm writing.

Upon getting the mousedown event, I set the port to that in the eventMessage.
(hopefully the DA's port, is this always true?)

At this point I drop into Macsbug and view the point in the 
eventRecord's Where field.  It is in Global coordinates as I tested it out
moving the window around and checking the various values.

I then pass this point to GlobalToLocal and it comes back garbaged.

Has anyone had troubles with Global to local before?  This seems trivial, but
I have been away from coding so long that it is stumping me.


Here is the code that processes the event:
	if (theEvent->what == mouseDown) {
		myWindow = (WindowPtr) theEvent->message;
		SetPort(myWindow);		/* use the port of the DA */
		foo = theEvent->where;
		Debugger();
		GlobalToLocal(&foo);		/* convert to local axes */
		Debugger();
		if (PtInRect(foo,&globals->listBox)) SysBeep(1); 

Thanks much for any help in advance.  This problem seems so straightforward 
that I am having trouble seeing it.  Frustration is quickly settling in....

Dave

-- 
Disclaimer: The above is all me and has no correlation to Apple policy.
******************************************************************************
*                                     *                                      *
*            Dave Green               *  Scratch that, reverse it.           *
*            daveg@Apple.com          *                     Willie W         *
*                                     *                                      * 
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