ThemeEngine emulates a well-described and understandable MS Theme API (uxtheme.dll) interface. If your application or components use MS Theme API for the correct display in Windows XP they can easily get ThemeEngine
support, it is only necessary to add te_uxtheme in the module and then if the active theme is ThemeEngine, yours applications and the component will use it. Otherwise if the program is started in Windows XP and the visual styles are active, the uxtheme.dll library will be involved. The detailed MS Theme API documentation can be received here.