SDL_SetRenderVSync - Man Page

#include <SDL3/SDL_render.h>

bool SDL_SetRenderVSync(SDL_Renderer *renderer, int vsync);


#define SDL_RENDERER_VSYNC_DISABLED 0
#define SDL_RENDERER_VSYNC_ADAPTIVE (-1)

When a renderer is created, vsync defaults to SDL_RENDERER_VSYNC_DISABLED.

The vsync parameter can be 1 to synchronize present with every vertical refresh, 2 to synchronize present with every second vertical refresh, etc., SDL_RENDERER_VSYNC_ADAPTIVE for late swap tearing (adaptive vsync), or SDL_RENDERER_VSYNC_DISABLED to disable. Not every value is supported by every driver, so you should check the return value to see whether the requested setting is supported.

renderer

the renderer to toggle.

vsync

the vertical refresh sync interval.

for more information.

This function should only be called on the main thread.

This function is available since SDL 3.2.0.

SDL_GetRenderVSync(3)

SDL_GetRenderVSync(3).