> For the complete documentation index, see [llms.txt](https://docs.flatredball.com/flatredball/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.flatredball.com/flatredball/api/flatredball/graphics/graphicsoptions/setfullscreen.md).

# SetFullScreen

### Introduction

SetFullScreen sets the game to run in full screen. This function can change the current resolution of the desktop. Graphics cards only support a certain number of resolution configurations. If SetFullScreen is called with a value not supported by the graphics device, an exception will be thrown.

### Code Example

The following code sets the game to run in full screen, using the current display resolution.

```lang:c#
var displayMode = FlatRedBallServices.GraphicsDevice.DisplayMode;
FlatRedBallServices.GraphicsOptions.SetFullScreen(displayMode.Width, displayMode.Height);
```


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