Text Drawing

I can draw text using the tutorial on GameDev (http://www.gamedev.net/reference/programming/features/fontengine/) Anyway, I was wondering. How can I smooth out the fonts? Similar to when you enable "Smooth Edges Of Screen Fonts" under DisplayProperies->Effects. How can I get this effect using the same font engine? NOTE: I know the GDI functions are slow. This is why this font engine is only used in my menues. Still, I have to redraw the entire screen every frame instead of updating rects... The past was unknown, the future was predicted.