Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!uwm.edu!gem.mps.ohio-state.edu!apple!claris!sts!sjsumcs!33014-18
From: 33014-18@sjsumcs.sjsu.edu (Eduardo Horvath)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Finding active screen
Message-ID: <1989Oct13.162959.386@sjsumcs.sjsu.edu>
Date: 13 Oct 89 16:29:59 GMT
References: <89281.222710CJC105@PSUVM.BITNET> <126033@sun.Eng.Sun.COM> <9022@batcomputer.tn.cornell.edu>
Reply-To: 33014-18@sjsumcs.SJSU.EDU (Eduardo Horvath)
Organization: San Jose State University
Lines: 26

In article <9022@batcomputer.tn.cornell.edu> riley@tcgould.tn.cornell.edu (Daniel S. Riley) writes:
>In article <126033@sun.Eng.Sun.COM> cmcmanis@sun.UUCP (Chuck McManis) writes:
>>In article <89281.222710CJC105@PSUVM.BITNET> CJC105@PSUVM.BITNET (Chris) writes:
>>>How does one go about finding the active BitMap?  The method I am using now is:
>
[ lots eaten ]
>window on it).  You might try instead
>
>	Lock = LockIBase();
>	bm = IntuitionBase->ActiveScreen->BitMap;
>	UnlockIBase(Lock);
>
[ sommore eaten ]
>-Dan Riley (riley@tcgould.tn.cornell.edu, cornell!batcomputer!riley)
>-Wilson Lab, Cornell U.

I don't remember seeing an ActiveScreen pointer in IntutionBase.
However, there is an ActiveWindow, so try this:

	Lock = LockIBase();
	bm = IntuitionBase->ActiveWindow->Screen->BitMap;
	UnlockIBase(Lock);

I used something similar to take over another application's screen once.

	Eduardo Horvath