Function sdl2_sys::SDL_SetTextureAlphaMod

pub unsafe extern "C" fn SDL_SetTextureAlphaMod(
    texture: *mut SDL_Texture, 
    alpha: Uint8
) -> c_int

\brief Set an additional alpha value used in render copy operations.

\param texture The texture to update. \param alpha The alpha value multiplied into copy operations.

\return 0 on success, or -1 if the texture is not valid or alpha modulation is not supported.

\sa SDL_GetTextureAlphaMod()