[Coco] OS-9 graphics using C

[Bob Devries]

Todd,

I'd suggest you spend some time seriously studying the documentation of the 
CGFX library. This extension to the C language is available on RTSI:

Docs:
ftp://www.rtsi.com/OS9/OS9_6X09/PROG/Cgfx_7_doc.lzh
Binary files:
ftp://www.rtsi.com/OS9/OS9_6X09/PROG/Cgfx_7.lzh
Source Code:
ftp://www.rtsi.com/OS9/OS9_6X09/PROG/Cgfx_7_src.lzh

Hope that helps.

Regards, Bob Devries
Las Pinas City, Philippines

--
Besides a mathematical inclination, an exceptionally good mastery of one's 
native tongue is the most vital asset of a competent programmer.

Edsger W.Dijkstra, 18 June 1975

----- Original Message ----- 
From: "Todd Wallace" <dragonbytes at cox.net>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Tuesday, April 20, 2010 6:00 PM
Subject: [Coco] OS-9 graphics using C


Hey guys,

So I have been continuing to experiment and learn to write simple programs 
for OS-9 in C.  I have reached the point where I'd like to manipulate the 
screen, such as background/foreground colors and locating the cursor in 
specific parts, etc.  The documentation I have checked so far is "Microware 
C Compiler User’s Guide" which explains about standard input/output, 
compiling, etc.  I also have been through "The complete Rainbow guide to 
os-9 level II. volume 1: a beginners guide to windows".  This has taught me 
how to use the "display, wcreate, iniz" commands etc in OS9 to manipulate 
the screen.  But I still lack the knowledge of how to perform those commands 
from C. And finally "The NitrOS-9" level 2 windowing system" which again 
taught me alot about manipulating windows in os9 but not how to do any of 
that stuff from C.  I suspect I will somehow need to use the _os9 system 
call in C, but I have no reference as to the possible commands I can do with 
that.  Any help is appreciated as always! :-)

- Todd Wallace

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