(This is the legacy documentation for stable SDL2, the current stable version; SDL3 is the current development version.)

SDL_SetSurfaceBlendMode

Set the blend mode used for blit operations.

Header File

Syntax

int SDL_SetSurfaceBlendMode(SDL_Surface * surface,
                            SDL_BlendMode blendMode);

Function Parameters

surface	the SDL_Surface structure to update
blendMode	the SDL_BlendMode to use for blit blending

Return Value

Returns 0 on success or a negative error code on failure; call SDL_GetError() for more information.

Remarks

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.

Version

This function is available since SDL 2.0.0.