DirectX Styles are not available in Win32 runtime.
Evolving web page designs, mobile phone apps, large monitors, and the rise of the touch screen pose challenges in the design of user interfaces. DirectX styles offer you flexibility in creating your application user interfaces and provide effects such as transparency, rounded corners, gradient brushes and flat designs.
The DirectX Style property controls the way components are displayed when run in DirectX mode:
MouseOverStyle and MouseOverStyles Properties
PrivateStyle and PrivateStyles Properties