🚀 go-pugleaf

In article <5#k30!p@rpi.edu> myersr@aix.rpi.edu (Robert Parish Myers) writes:
>How do you use VGA graphics (both 320x200x256 and 640x480x16) in a
>full screen OS/2 Session
>
>a) In General?

I believe there are Dos and/or Vio calls to set the screen mode, and
request a memory buffer that will map to the display.  You can then
read/write the display as if it were any other memory page.  At least
I think this is how it works.

I know that there are system calls for enabling full-screen graphics
without violating memory protection, but I've never used any of them.
And they are very non-portable, so you may need to locate
documentation for the 16-bit calls to figure out what to do with them.

And (of course) these calls will fail in a windowed or PM session.

>b) In emx 0.8e (which I'm using now) and emx0.8f(which I plan to be
>   using soon)?

I'm pretty sure that you use the general method with EMX compilers.
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