###### (This is the documentation for SDL3, which is the current stable version. [SDL2](https://wiki.libsdl.org/SDL2/) was the previous version!) # SDL_UnlockSurface Release a surface after directly accessing the pixels. ## Header File Defined in [](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_surface.h) ## Syntax ```c void SDL_UnlockSurface(SDL_Surface *surface); ``` ## Function Parameters | | | | | ---------------------------- | ----------- | -------------------------------------------------------- | | [SDL_Surface](SDL_Surface) * | **surface** | the [SDL_Surface](SDL_Surface) structure to be unlocked. | ## Version This function is available since SDL 3.1.3. ## See Also - [SDL_LockSurface](SDL_LockSurface) ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategorySurface](CategorySurface)