---
name: "SDL_GL_SwapWindow"
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_GL_SwapWindow"
---

# SDL\_GL\_SwapWindow(3)

Update a window with OpenGL rendering.

## NAME

SDL\_GL\_SwapWindow - Update a window with OpenGL rendering.

## HEADER FILE

Defined in SDL3/SDL\_video.h

## SYNOPSIS

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

**bool SDL\_GL\_SwapWindow(SDL\_Window \*window);**

## DESCRIPTION

This is used with double-buffered OpenGL contexts, which are the default.

On macOS, make sure you bind 0 to the draw framebuffer before swapping the window, otherwise nothing will happen. If you aren't using glBindFramebuffer(), this is the default and you won't have to do anything extra.

## FUNCTION PARAMETERS

- *window*

  the window to change.

## 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.