NAME¶

SDL_GetSurfaceAlphaMod - Get the additional alpha value used in blit operations.

SYNOPSIS¶

#include "SDL3/SDL.h"

int SDL_GetSurfaceAlphaMod(SDL_Surface *surface, Uint8 *alpha);

FUNCTION PARAMETERS¶

surface

the SDL_Surface
structure to query

alpha

a pointer filled in with the current alpha value

RETURN VALUE¶

Returns 0 on success or a negative error code on failure; call

SDL_GetError () for more information.

AVAILABILITY¶

This function is available since SDL 3.0.0.

SEE ALSO¶

SDL_GetSurfaceColorMod(3), SDL_SetSurfaceAlphaMod(3)