DOKK / manpages / debian 13 / libsdl3-doc / SDL_SetSurfaceBlendMode.3.en
SDL_SetSurfaceBlendMode(3) SDL3 FUNCTIONS SDL_SetSurfaceBlendMode(3)

SDL_SetSurfaceBlendMode - Set the blend mode used for blit operations.

Defined in SDL3/SDL_surface.h

#include "SDL3/SDL.h"
bool SDL_SetSurfaceBlendMode(SDL_Surface *surface, SDL_BlendMode blendMode);

To copy a surface to another surface (or texture) without blending with the existing data, the blendmode of the SOURCE surface should be set to

SDL_BLENDMODE_NONE .

the SDL_Surface
structure to update.
the SDL_BlendMode
to use for blit blending.

Returns true on success or false on failure; call

SDL_GetError () for more information.

This function is not thread safe.

This function is available since SDL 3.2.0.

(3), SDL_GetSurfaceBlendMode(3)

SDL 3.2.10 Simple Directmedia Layer