DirectComposition is a new COM api in Win8. No much to say, DComp has exceeded legacy all Gui Api in Gui Animation. See video below.
Introduction in MSDN
/* DirectComposition Sample : how to create and initialize the minimum set of Microsoft DirectComposition objects needed to create a simple composition. OS Version : Win8 AHK Version : newest verion of Autohotkey_H Library : base.ahk dcomp.ahk Website : */
Download the script here, and run dcomp_sample1.ahk
Video in Screenr promoted
Do you still learn gdi+? Come to high-performance DirectX Series now. DirectComposition + Direct2D + DirectWrite + Direct3D will bring new experience.