###### (This is the legacy documentation for SDL2, the previous stable version; [SDL3](https://wiki.libsdl.org/SDL3/) is the current stable version.)
# SDL_GetWindowID

Get the numeric ID of a window.

## Header File

Defined in [SDL_video.h](https://github.com/libsdl-org/SDL/blob/SDL2/include/SDL_video.h)

## Syntax

```c
Uint32 SDL_GetWindowID(SDL_Window * window);
```

## Function Parameters

|                            |            |                      |
| -------------------------- | ---------- | -------------------- |
| [SDL_Window](SDL_Window) * | **window** | the window to query. |

## Return Value

([Uint32](Uint32)) 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.

## See Also

- [SDL_GetWindowFromID](SDL_GetWindowFromID)

----
[CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryVideo](CategoryVideo)