gl_setcontextvgavirtual3
Set the context to a virtual mode
Usage
#include <vgagl.h>
int gl_setcontextvgavirtual(int mode);
Overview
Allocate a virtual screen in system memory identical to the graphics mode (as defined in vga_setmode(3)), and make that the current graphics context.
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.
Releases
Unchanged in 5 releases since Debian 3.1 (Sarge).