Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!rutgers!bellcore!texbell!uhnix1!uhnix2!uace0
From: uace0@uhnix2.uh.edu (Michael B. Vederman)
Newsgroups: comp.sys.atari.st
Subject: Re: Who have I clobbered? (GEM windows)
Keywords: GEM redraw rectangle
Message-ID: <719@uhnix2.uh.edu>
Date: 4 Mar 89 04:45:44 GMT
References: <7829@chinet.chi.il.us> <7839@chinet.chi.il.us> <427@hall.cray.com>
Reply-To: uace0@uhnix2.UUCP
Organization: University of Houston
Lines: 17

The easiest way to force a redraw of everything on the screen is to perform a
form_dial(FMD_FINISH,0,0,0,0,dx,dy,dw,dh);

where dx, dy, dw, dh are the maximum area of the desktop as returned by the
call wind_get(0,WF_WORKXYWH,&dx,&dy,&dw,&dh)

This will force a redraw message to be sent to everyone.  This is by far
the easiest way to get other applications to redraw.  If they don't do it,
some DAs won't handle redraw messages, then they don't do redraws.

- mike vederman

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