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

Get the usable desktop area represented by a display.

## Header File

Defined in [SDL_video.h](https://github.com/libsdl-org/SDL/blob/SDL2/include/SDL_video.h), but apps should _only_ `#include "SDL.h"`!

## Syntax

```c
int SDL_GetDisplayUsableBounds(int displayIndex, SDL_Rect * rect);

```

## Function Parameters

|                      |                                                                      |
| -------------------- | -------------------------------------------------------------------- |
| **displayIndex**     | the index of the display to query the usable bounds from             |
| **rect**             | the [SDL_Rect](SDL_Rect) structure filled in with the display bounds |

## Return Value

Returns 0 on success or a negative error code on failure; call
[SDL_GetError](SDL_GetError)() for more information.

## Remarks

The primary display (`displayIndex` zero) is always located at 0,0.

This is the same area as [SDL_GetDisplayBounds](SDL_GetDisplayBounds)()
reports, but with portions reserved by the system removed. For example, on
Apple's macOS, this subtracts the area occupied by the menu bar and dock.

Setting a window to be fullscreen generally bypasses these unusable areas,
so these are good guidelines for the maximum space available to a
non-fullscreen window.

The parameter `rect` is ignored if it is NULL.

This function also returns -1 if the parameter `displayIndex` is out of
range.

## Version

This function is available since SDL 2.0.5.

## See Also

* [SDL_GetDisplayBounds](SDL_GetDisplayBounds)
* [SDL_GetNumVideoDisplays](SDL_GetNumVideoDisplays)

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[CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction)