[DllImport("uxtheme", ExactSpelling=true)]
public extern static ThemeAppProperties GetThemeAppProperties();
VB .NET Signature:
Declare Function GetThemeAppProperties Lib "uxtheme.dll" (TODO) As TODO
<DllImport("uxtheme", ExactSpelling := True)> _
Public Shared Function GetThemeAppProperties() As ThemeAppProperties
End Function