Function sdl2_sys::SDL_GetRenderDrawBlendMode

pub unsafe extern "C" fn SDL_GetRenderDrawBlendMode(
    renderer: *mut SDL_Renderer, 
    blendMode: *mut SDL_BlendMode
) -> c_int

\brief Get the blend mode used for drawing operations.

\param renderer The renderer from which blend mode should be queried. \param blendMode A pointer filled in with the current blend mode.

\return 0 on success, or -1 on error

\sa SDL_SetRenderDrawBlendMode()