###### (This is the documentation for SDL3, which is under heavy development and the API is changing! [SDL2](https://wiki.libsdl.org/SDL2/) is the current stable version!) # SDL_GetWindowFullscreenMode Query the display mode to use when a window is visible at fullscreen. ## Syntax ```c const SDL_DisplayMode* SDL_GetWindowFullscreenMode(SDL_Window *window); ``` ## Function Parameters | | | | -------------- | ------------------- | | **window** | the window to query | ## Return Value Returns a pointer to the exclusive fullscreen mode to use or NULL for borderless fullscreen desktop mode ## Version This function is available since SDL 3.0.0. ## Related Functions * [SDL_SetWindowFullscreenMode](SDL_SetWindowFullscreenMode) * [SDL_SetWindowFullscreen](SDL_SetWindowFullscreen) ---- [CategoryAPI](CategoryAPI)