Flat Win32 UI widgets

I''ve long since wondered how encarta, and more recently Nemo, have implemented flat Win32 UI elements. I found the FlatScrollbar thingy in the common controls library, and it''s great. However, I''d like to do this with other controls (buttons, text boxes etc). I especially like the "move mouse over = change colour of object" feature. Will I need to use User-Drawn objects? Is this easy? Are there any tutorials out there? Any help will be greatly appreciated!!! Simon Wilson, XEOS Digital Development