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From: dorner@pequod.cso.uiuc.edu (Steve Dorner)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Question: InvalRect in Think C
Message-ID: <1991Mar14.141639.16825@ux1.cso.uiuc.edu>
Date: 14 Mar 91 14:16:39 GMT
References: <1991Mar14.021122.292@husc3.harvard.edu>
Sender: usenet@ux1.cso.uiuc.edu (News)
Organization: University of Illinois at U-C
Lines: 11

>At several points I need to add a rectangle to the update region of a 
>dialog box.  The calls InvalRect and InvalRgn, however, fail to work.  Each
>one generates an out-of-memory error.  What am I doing wrong/not doing?

Make sure that you have set the current port to your dialog window.
Make sure you are giving InvalRect a pointer to the rectangle, and not
the rectangle itself.
Make sure you are passing a VALID region to InvalRgn.
--
Steve Dorner, U of Illinois Computing Services Office
Internet: s-dorner@uiuc.edu  UUCP: uunet!uiucuxc!uiuc.edu!s-dorner