Interfacing the graphics driver process?

QNX Newsgroups (Archives) comp.os.qnx
1

I know normally Photon takes care of the interfacing to the
graphics driver process(es), but I am interested in
communicating directly with the graphics driver process - where
can I find a description of that?

This is for a project with its own Windows manager.

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2

Hojbjerg <jens_hojbjergNOjeSPAM@hotmail.com.invalid> wrote:

I know normally Photon takes care of the interfacing to the
graphics driver process(es), but I am interested in
communicating directly with the graphics driver process - where
can I find a description of that?

I don’t believe that this is a public interface.
It it however possible to use Photon as just a single
window graphics engine.



Mitchell Schoenbrun --------- maschoen@pobox.com

3

Can you get a pointer to the display memory - like DirectDraw?

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4

Hojbjerg <jens_hojbjergNOjeSPAM@hotmail.com.invalid> wrote:

Can you get a pointer to the display memory - like DirectDraw?

Now that seems likely. I’d start with the show_pci utility
to see if PCI registers point to this memory. You will
have to figure out the format yourself. This in turn
will depend on the video mode that you are in.



Mitchell Schoenbrun --------- maschoen@pobox.com