###### (This is the legacy documentation for stable SDL2, the current stable version; [SDL3](https://wiki.libsdl.org/SDL3/) is the current development version.) # SDL_GetWindowID Get the numeric ID of a window. ## Syntax ```c Uint32 SDL_GetWindowID(SDL_Window * window); ``` ## Function Parameters | | | | -------------- | ------------------- | | **window** | the window to query | ## Return Value Returns the ID of the window on success or 0 on failure; call [SDL_GetError](SDL_GetError)() for more information. ## Remarks The numeric ID is what [SDL_WindowEvent](SDL_WindowEvent) references, and is necessary to map these events to specific [SDL_Window](SDL_Window) objects. ## Version This function is available since SDL 2.0.0. ## Related Functions * [SDL_GetWindowFromID](SDL_GetWindowFromID) ---- [CategoryAPI](CategoryAPI)