Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!apple!portal!cup.portal.com!Chris_F_Chiesa
From: Chris_F_Chiesa@cup.portal.com
Newsgroups: comp.sys.amiga.programmer
Subject: Re: Beginner question, revisited(maybe)
Message-ID: <38855@cup.portal.com>
Date: 4 Feb 91 13:43:43 GMT
References: <38607@cup.portal.com> <801@cbmger.UUCP>
Organization: The Portal System (TM)
Lines: 24

Hello All.

  First, thanks to everyone (all three of you) who responded to my questions;
I will be contacting CATS for the 1.3 (and 2.0?  There were varying opinions
as to whether 2.0 is "available" yet) KS/WB with docs...

  Second, there were varying opinions as to how to solve my "window opens 
but no graphics appear" problems.  One person said I had to create a tmpras
structure, allocate bitmaps, etc. etc., whereas another said I just had to
grab the RPort supplied with my window after OpenWindow() did its thing.  I
investigated both of these alternatives, and ended up typing in the first
example program from Rob Peck's book, fixing several syntax/punctuation 
errors, and cross-checking HIS program (which worked) against MINE (which
seemed to do the EXACT SAME things but DIDN'T work.)  I found the problem, 
and boy do I feel stupid: I was opening the intution.library, but never
opening the graphics.library !  Oddly, this didn't seem to crash Move(),
Draw(), PolyDraw(), or DrawBorders(), but DID crash SetAPen() !  Figure
THAT one out.  Anyway, I added the appropriate OpenLibrary() call to 
provide graphics library functions, and the problems evaporated.  I have
had the delightful pleasure, this very morning, of seeing my very own 
graphics appear in my very own window on the Amiga!  What an experience! :-)

Chris Chiesa
  Chris_F_Chiesa@cup.portal.com