SDL_SetRenderDrawBlendMode - Man Page

#include <SDL3/SDL_render.h>

bool SDL_SetRenderDrawBlendMode(SDL_Renderer *renderer, SDL_BlendMode blendMode);

This blend mode is used for any drawing that doesn't involve textures.

If the blend mode is not supported, the closest supported mode is chosen.

renderer

the rendering context.

blendMode

the SDL_BlendMode to use for blending.

Returns true on success or false on failure; call SDL_GetError() for more information.

This function should only be called on the main thread.

This function is available since SDL 3.2.0.

SDL_GetRenderDrawBlendMode(3), SDL_SetTextureBlendMode(3)