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


Set the blend mode used for drawing operations (Fill and Line).

Header File

Defined in SDL_render.h


int SDL_SetRenderDrawBlendMode(SDL_Renderer * renderer,
                           SDL_BlendMode blendMode);

Function Parameters

SDL_Renderer * renderer the rendering context.
SDL_BlendMode blendMode the SDL_BlendMode to use for blending.

Return Value

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


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


This function is available since SDL 2.0.0.

See Also

CategoryAPI, CategoryAPIFunction, CategoryRender

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