---
name: "SDL_SetSurfaceRLE"
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_SetSurfaceRLE"
---

# SDL\_SetSurfaceRLE(3)

Set the RLE acceleration hint for a surface.

## NAME

SDL\_SetSurfaceRLE - Set the RLE acceleration hint for a surface.

## HEADER FILE

Defined in SDL3/SDL\_surface.h

## SYNOPSIS

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

**bool SDL\_SetSurfaceRLE(SDL\_Surface \*surface, bool enabled);**

## DESCRIPTION

If RLE is enabled, color key and alpha blending blits are much faster, but the surface must be locked before directly accessing the pixels.

## FUNCTION PARAMETERS

- *surface*

  the  **SDL\_Surface**\
    structure to optimize.

- *enabled*

  true to enable RLE acceleration, false to disable it.

## RETURN VALUE

Returns true on success or false on failure; call

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

## THREAD SAFETY

This function is not thread safe.

## AVAILABILITY

This function is available since SDL 3.2.0.

## SEE ALSO

**•**(3), [**SDL\_BlitSurface**(3)](/SDL_BlitSurface/3.md), **•**(3), [**SDL\_LockSurface**(3)](/SDL_LockSurface/3.md), **•**(3), [**SDL\_UnlockSurface**(3)](/SDL_UnlockSurface/3.md)