Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!cbmvax!jjszucs
From: jjszucs@cbmvax.commodore.com (John J. Szucs)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Clearing the Window
Message-ID: <13757@cbmvax.commodore.com>
Date: 10 Aug 90 20:34:06 GMT
References: <1990Aug10.022609.9022@ariel.unm.edu> <13749@cbmvax.commodore.com> <3510@leah.Albany.Edu>
Reply-To: jjszucs@cbmvax (John J. Szucs)
Distribution: na
Organization: Commodore, West Chester, PA
Lines: 37

In article <3510@leah.Albany.Edu> wfh58@leah.albany.edu.UUCP (William F. Hammond) writes:
>In article <13749@cbmvax.commodore.com> jjszucs@cbmvax (John J. Szucs) writes:
>>In article <1990Aug10.022609.9022@ariel.unm.edu> kchiu@carina.unm.edu writes:

[stuff deleted]

>>There is no function for clearing a window per se.
>>
>Take a look at ClearScreen().  I don't have autodocs handy at the moment,
>but I believe this function is in graphics.library:
>
>              void ClearScreen(struct RastPort *rp);
>
>where:        rp = yourwindow->RPort
>
>with:         yourwindow being the pointer to the window you want to clear

ClearScreen clears the RastPort from the current position. If the window
is not of the GIMMEZEROZERO flavor, the window borders and border gadgetry are
in the RastPort and are also cleared. Thus, ClearScreen is only suitable
for GIMMEZEROZERO windows (or other RastPorts where you really mean to
clear the WHOLE RastPort).

>
>----------------------------------------------------------------------
>William F. Hammond                   Dept. of Mathematics & Statistics

================================================================================
|| John J. Szucs                    || The opinions expressed are my own and  ||
|| Systems Evaluation Group         || in no way represent the opinions or    ||
|| Product Assurance Department     || policies of Commodore Technology, Inc. ||
|| Commodore Technology, Inc.       || or any associated entity.              ||
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