gl_setcontextvga3
Set the context to the physical screen
Usage
#include <vgagl.h>
int gl_setcontextvga(int mode);
Overview
Set the graphics context to the physical screen of a vga mode (as defined in vga_setmode(3)). The mode must be set with vga_setmode(3) prior to using any of the drawing functions. vgagl does not take care of that.
The function returns 0 for success and non-zero if the mode is not supported by the hardware.
The only thing you can do with a planar (mode X-like) 256 color mode is aligned gl_putbox, and use it as a target for gl_copyscreen.
In all of the svga modes this program makes a description of the vga mode available to the vgagl functions. The 256 color svgamodes are handled properly by this program.
Releases
Unchanged in 5 releases since Debian 3.1 (Sarge).