- surface-alpha-mod surfaceprocedure
- set! (surface-alpha-mod surface) modsetter
- surface-alpha-mod-set! surface modsetter
See SDL_GetSurfaceAlphaMod and SDL_SetSurfaceAlphaMod.
These procedures signal an exception of kind (exn sdl2) if an error occurs.
See SDL_GetSurfaceAlphaMod and SDL_SetSurfaceAlphaMod.
These procedures signal an exception of kind (exn sdl2) if an error occurs.