P.S. If you only require a constant level of alpha transparency across the whole surface, then you can still use RGBX/XRGB etc. And then set the surface alpha property. It's only necessary to use an alpha pixel format if you intend to define shape and varying levels of transparency across the surface.
P.S. If you only require a constant level of alpha transparency across the whole surface, then you can still use RGBX/XRGB etc. And then set the surface alpha property. It's only necessary to use an alpha pixel format if you intend to define shape and varying levels of transparency across the surface.