Provided by: libsdl3-doc_3.2.8+ds-1_all 

NAME
SDL_SetSurfaceBlendMode - Set the blend mode used for blit operations.
HEADER FILE
Defined in SDL3/SDL_surface.h
SYNOPSIS
#include "SDL3/SDL.h" bool SDL_SetSurfaceBlendMode(SDL_Surface *surface, SDL_BlendMode blendMode);
DESCRIPTION
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 .
FUNCTION PARAMETERS
surface the SDL_Surface structure to update. blendMode the SDL_BlendMode to use for blit blending.
RETURN VALUE
Returns true on success or false on failure; call SDL_GetError () for more information.
AVAILABILITY
This function is available since SDL 3.2.0.
SEE ALSO
•(3), SDL_GetSurfaceBlendMode(3) Simple Directmedia Layer SDL 3.2.8 SDL_SetSurfaceBlendMode(3)