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

NAME
SDL_SetRenderDrawBlendMode - Set the blend mode used for drawing operations (Fill and Line).
HEADER FILE
Defined in SDL3/SDL_render.h
SYNOPSIS
#include "SDL3/SDL.h" bool SDL_SetRenderDrawBlendMode(SDL_Renderer *renderer, SDL_BlendMode blendMode);
DESCRIPTION
If the blend mode is not supported, the closest supported mode is chosen.
FUNCTION PARAMETERS
renderer the rendering context. blendMode the SDL_BlendMode to use for blending.
RETURN VALUE
Returns true on success or false on failure; call SDL_GetError () for more information.
THREAD SAFETY
This function should only be called on the main thread.
AVAILABILITY
This function is available since SDL 3.2.0.
SEE ALSO
•(3), SDL_GetRenderDrawBlendMode(3) Simple Directmedia Layer SDL 3.2.8 SDL_SetRenderDrawBlendMode(3)