sdlSetColorKey function
Set the color key (transparent pixel) in a surface.
The color key defines a pixel value that will be treated as transparent in a blit. For example, one can use this to specify that cyan pixels should be considered transparent, and therefore not rendered.
It is a pixel of the format used by the surface, as generated by SDL_MapRGB().
RLE acceleration can substantially speed up blitting of images with large horizontal runs of transparent pixels. See SDL_SetSurfaceRLE() for details.
\param surface the SDL_Surface structure to update \param flag SDL_TRUE to enable color key, SDL_FALSE to disable color key \param key the transparent pixel \returns 0 on success or a negative error code on failure; call SDL_GetError() for more information.
\since This function is available since SDL 2.0.0.
\sa SDL_BlitSurface \sa SDL_GetColorKey
extern DECLSPEC int SDLCALL SDL_SetColorKey(SDL_Surface * surface, int flag, Uint32 key)
Implementation
int sdlSetColorKey(Pointer<SdlSurface> surface, int flag, int key) {
final sdlSetColorKeyLookupFunction = libSdl2.lookupFunction<
Int32 Function(Pointer<SdlSurface> surface, Int32 flag, Uint32 key),
int Function(
Pointer<SdlSurface> surface, int flag, int key)>('SDL_SetColorKey');
return sdlSetColorKeyLookupFunction(surface, flag, key);
}