Path: utzoo!attcan!uunet!tut.cis.ohio-state.edu!zaphod.mps.ohio-state.edu!wuarchive!udel!burdvax!shuda
From: shuda@PRC.Unisys.COM (Lester Shuda)
Newsgroups: comp.windows.x
Subject: Re: XCopyPlane() bug (sort of).
Message-ID: <14385@burdvax.PRC.Unisys.COM>
Date: 12 Jul 90 12:20:46 GMT
References: <9007101642.AA12606@hansen.com>
Sender: news@PRC.Unisys.COM
Organization: Unisys Corporation, Paoli Research Center; Paoli, PA
Lines: 29

In article <9007101642.AA12606@hansen.com> lemke@ncd.COM (Dave Lemke) writes:
>
>  From:  uunet!ucbvax.berkeley.edu!pasteur!graft!scott  (Scott Silvey)
>  Date:  9 Jul 90 22:13:49 GMT
>
>  I am trying to turn a window's image into an X11 bitmap.  I want to write thi
>s
>    bitmap out to a file using XWriteBitmapFile().
>  
>  However, I can't find any way to do this using XCopyPlanes or XGet/PutImage i
>f
>    the window is on a color display (multiple planes).  There is apparently 
>    no way for me to copy the information from the window to a single plane 
>    bitmap short of checking each and every pixel one at a time.  
>  
	If you just want to use XWriteBitmapFile(), just use the window
	as the Drawable argument. If you want to actually copy
	into an intermediate Pixmap, create a multiple plane Pixmap (same
	depth as your source window) and then use XCopyArea to copy into 
	that. You may then use this Pixmap as an argument to 
	XWriteBitmapFile. I haven't been able to get XWriteBitmapFile to 
	work with actual bitmaps (i.e. 1 bit deep Pixmaps).




*************************************************************************
* Les Shuda                             net: shuda@prc.unisys.com       *
* L. Shuda Consulting			phone: (215) 648-2524           *