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

Get the index of the display associated with a window.

## Header File

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

## Syntax

```c
int SDL_GetWindowDisplayIndex(SDL_Window * window);
```

## Function Parameters

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

## Return Value

(int) Returns the index of the display containing the center of the window
on success or a negative error code on failure; call
[SDL_GetError](SDL_GetError)() for more information.

## Version

This function is available since SDL 2.0.0.

## See Also

- [SDL_GetDisplayBounds](SDL_GetDisplayBounds)
- [SDL_GetNumVideoDisplays](SDL_GetNumVideoDisplays)

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