###### (This is the legacy documentation for stable SDL2, the current stable version; [SDL3](https://wiki.libsdl.org/SDL3/) is the current development version.) # SDL_GetDesktopDisplayMode Get information about the desktop's display mode. ## Syntax ```c int SDL_GetDesktopDisplayMode(int displayIndex, SDL_DisplayMode * mode); ``` ## Function Parameters | | | | -------------------- | --------------------------------------------------------------------------------------- | | **displayIndex** | the index of the display to query | | **mode** | an [SDL_DisplayMode](SDL_DisplayMode) structure filled in with the current display mode | ## Return Value Returns 0 on success or a negative error code on failure; call [SDL_GetError](SDL_GetError)() for more information. ## Remarks There's a difference between this function and [SDL_GetCurrentDisplayMode](SDL_GetCurrentDisplayMode)() when SDL runs fullscreen and has changed the resolution. In that case this function will return the previous native display mode, and not the current display mode. ## Version This function is available since SDL 2.0.0. ## Related Functions * [SDL_GetCurrentDisplayMode](SDL_GetCurrentDisplayMode) * [SDL_GetDisplayMode](SDL_GetDisplayMode) * [SDL_SetWindowDisplayMode](SDL_SetWindowDisplayMode) ## Header SDL_video.h ---- [CategoryAPI](CategoryAPI)