How to clear CANVAS in sunview

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Article #12651

#12651

From: Jay
Date: Mon, 08 May 1989 18:32

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I have already posted this to comp.graphics but have got no answers so
please help me out.

I am interested in an easy way to clear a canvas without having to write
my own repaint proc.  I have tried changing CANVAS_AUTO_CLEAR to TRUE but
this does not SEEM to work.  The manual says "... if the attribute
CANVAS_AUTO_CLEAR is TRUE, the canvas package will clear the repaint area
before calling your repaint procedure".  Does this mean I have to have my
own repaint proc for this to occur?????  Any help on this will be much
appriciated as I am a relative newcomer to sunview prog.

Jay Williamson            Engineering Computer Operations
jaysun@eng.clemson.edu    Clemson University

Jay Williamson    <jaysun@eng.clemson.edu>

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!uw-beaver!rice!sun-spots-request
From: jaysun@omni.eng.clemson.edu (Jay)
Newsgroups: comp.sys.sun
Subject: How to clear CANVAS in sunview
Keywords: Windows
Message-ID: <5284@hubcap.clemson.edu>
Date: 8 May 89 18:32:21 GMT
Sender: usenet@rice.edu
Organization: Clemson University Engineering Department
Lines: 15
Approved: Sun-Spots@rice.edu
Original-Date: 27 Apr 89 04:41:31 GMT
X-Sun-Spots-Digest: Volume 7, Issue 276, message 9 of 18