[DllImport("uxtheme.dll", SetLastError = true, CharSet = CharSet.Unicode)]
public static extern HRESULT GetThemeDocumentationProperty(
[MarshalAs(UnmanagedType.LPWStr)] string pszThemeName,
[MarshalAs(UnmanagedType.LPWStr)] string pszPropertyName,
StringBuilder pszValueBuff,
int cchMaxValChars
);