NAME¶

SDL_HINT_DOS_ALLOW_DIRECT_FRAMEBUFFER - A variable that enables a fast framebuffer path on DOS.

SYNOPSIS¶

#include <SDL3/SDL_hints.h>

#define SDL_HINT_DOS_ALLOW_DIRECT_FRAMEBUFFER "SDL_DOS_ALLOW_DIRECT_FRAMEBUFFER"

DESCRIPTION¶

When set to "1", SDL_UpdateWindowSurface() copies the system-RAM surface directly to VRAM and skips software cursor compositing and vsync.

The variable can be set to the following values:

• "0": Use the normal path with cursor compositing and vsync. (default)

• "1": Use the fast direct-to-VRAM path when available.

This hint must be set before the first call to SDL_GetWindowSurface().

AVAILABILITY¶

This hint is available since SDL 3.6.0.