# SDL_GetNumDisplayModes

Get the number of available display modes.

## Header File

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

## Syntax

```c
int SDL_GetNumDisplayModes(int displayIndex);
```

## Function Parameters

|     |                  |                                    |
| --- | ---------------- | ---------------------------------- |
| int | **displayIndex** | the index of the display to query. |

## Return Value

(int) Returns a number >= 1 on success or a negative error code on failure;
call [SDL_GetError](SDL_GetError)() for more information.

## Remarks

The `displayIndex` needs to be in the range from 0 to
[SDL_GetNumVideoDisplays](SDL_GetNumVideoDisplays)() - 1.

## Version

This function is available since SDL 2.0.0.

## See Also

- [SDL_GetDisplayMode](SDL_GetDisplayMode)
- [SDL_GetNumVideoDisplays](SDL_GetNumVideoDisplays)

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

