Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!purdue!gatech!udel!princeton!andante!bwb
From: bwb@andante.UUCP (Bruce Ballard)
Newsgroups: comp.sys.mac.programmer
Subject: Wide offscreen bitmap won't receive draw commands
Message-ID: <22321@andante.UUCP>
Date: 18 Aug 89 13:57:40 GMT
Organization: AT&T Bell Laboratories, Murray Hill
Lines: 12

I've been using offscreen bitmaps for some time but now I need one
that's 1728 bits wide (for an 8-1/2' image at 300-dpi) and it nothing
I send via DrawPicture or other quickdraw calls, even simple things like
LineTo, extend past the screenBits.bounds. Instead I get garbage bits.
This despite the fact that I've tried ClipRect after doing SetPort to
the GrafPtr that's been associated via SetPortBits to the offscreen bitmap.

What am I missing? I've read TN-163 and other info of offscreen drawing
but I can't see where I'm going wrong? I'm using LSC 3.0 on a MacII w/ 8M.

-Bruce Ballard
bwb@allegra.