Function sdl2_sys::SDL_RenderDrawRect

pub unsafe extern "C" fn SDL_RenderDrawRect(
    renderer: *mut SDL_Renderer, 
    rect: *const SDL_Rect
) -> c_int

\brief Draw a rectangle on the current rendering target.

\param renderer The renderer which should draw a rectangle. \param rect A pointer to the destination rectangle, or NULL to outline the entire rendering target.

\return 0 on success, or -1 on error