NAME

SDL_GetSurfaceColorKey - Get the color key (transparent pixel) for a surface.

HEADER FILE

Defined in SDL3/SDL_surface.h

SYNOPSIS

#include "SDL3/SDL.h"

bool SDL_GetSurfaceColorKey(SDL_Surface *surface, Uint32 *key);

DESCRIPTION

The color key is a pixel of the format used by the surface, as generated by

SDL_MapRGB ().

If the surface doesn't have color key enabled this function returns false.

FUNCTION PARAMETERS

surface

the SDL_Surface
structure to query.

key

a pointer filled in with the transparent pixel.

RETURN VALUE

Returns true on success or false on failure; call

SDL_GetError () for more information.

THREAD SAFETY

It is safe to call this function from any thread.

AVAILABILITY

This function is available since SDL 3.2.0.

SEE ALSO

•(3), SDL_SetSurfaceColorKey(3), •(3), SDL_SurfaceHasColorKey(3)