---
name: "SDL_SetWindowBordered"
section: "3"
platform: "linux"
package: "libsdl3-doc"
version: "3.2.10+ds-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/SDL_SetWindowBordered"
---

# SDL\_SetWindowBordered(3)

Set the border state of a window.

## NAME

SDL\_SetWindowBordered - Set the border state of a window.

## HEADER FILE

Defined in SDL3/SDL\_video.h

## SYNOPSIS

```
#include "SDL3/SDL.h"
```

**bool SDL\_SetWindowBordered(SDL\_Window \*window, bool bordered);**

## DESCRIPTION

This will add or remove the window's

**SDL\_WINDOW\_BORDERLESS** flag and add or remove the border from the actual window. This is a no-op if the window's border already matches the requested state.

You can't change the border state of a fullscreen window.

## FUNCTION PARAMETERS

- *window*

  the window of which to change the border state.

- *bordered*

  false to remove border, true to add border.

## RETURN VALUE

Returns true on success or false on failure; call

**SDL\_GetError** () for more information.

## THREAD SAFETY

This function should only be called on the main thread.

## AVAILABILITY

This function is available since SDL 3.2.0.

## SEE ALSO

**•**(3), [**SDL\_GetWindowFlags**(3)](/SDL_GetWindowFlags/3.md)