SDL Wiki
(This is the legacy documentation for stable SDL2, the current stable version; SDL3 is the current development version.)


Set the display mode to use when a window is visible at fullscreen.


int SDL_SetWindowDisplayMode(SDL_Window * window,
                             const SDL_DisplayMode * mode);

Function Parameters

window the window to affect
mode the SDL_DisplayMode structure representing the mode to use, or NULL to use the window's dimensions and the desktop's format and refresh rate

Return Value

Returns 0 on success or a negative error code on failure; call SDL_GetError() for more information.


This only affects the display mode used when the window is fullscreen. To change the window size when the window is not fullscreen, use SDL_SetWindowSize().


This function is available since SDL 2.0.0.


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