SDL_HINT_DOS_ALLOW_DIRECT_FRAMEBUFFER

A variable that enables a fast framebuffer path on DOS.

Header File

Defined in <SDL3/SDL_hints.h>

Syntax

#define SDL_HINT_DOS_ALLOW_DIRECT_FRAMEBUFFER "SDL_DOS_ALLOW_DIRECT_FRAMEBUFFER"

Remarks

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().

Version

This hint is available since SDL 3.6.0.

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CategoryAPI, CategoryAPIMacro, CategoryHints

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