[Coco] OS-9 graphics using C
gene.heskett at verizon.net
Tue Apr 20 05:38:48 EDT 2010
On Tuesday 20 April 2010, Todd Wallace wrote:
>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
All of that, in the getstt and setstt calls is defined in the manuals for
both levels, Todd. Some of it is sort of a read between the lines thing, but
its all there.
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