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(This is the documentation for SDL3, which is under heavy development and the API is changing! SDL2 is the current stable version!)


Get the swap interval for the current OpenGL context.


int SDL_GL_GetSwapInterval(void);

Return Value

Returns 0 if there is no vertical retrace synchronization, 1 if the buffer swap is synchronized with the vertical retrace, and -1 if late swaps happen immediately instead of waiting for the next retrace; call SDL_GetError() for more information.


If the system can't determine the swap interval, or there isn't a valid current context, this function will return 0 as a safe default.


This function is available since SDL 3.0.0.


CategoryAPI, CategoryVideo

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