public static extern int DrawThemeTextEx(SafeThemeHandle hTheme, Gdi32.SafeDCHandle hdc, int iPartId, int iStateId, string text, int iCharCount, User32.DrawTextFlags dwFlags, ref RECT pRect, ref DrawThemeTextOptions pOptions);
public static extern int GetThemeTextExtent(SafeThemeHandle hTheme, Gdi32.SafeDCHandle hdc, int iPartId, int iStateId, string text, int textLength, User32.DrawTextFlags textFlags, ref RECT boundingRect, out RECT extentRect);
public static extern int DrawThemeText(SafeThemeHandle hTheme, Gdi32.SafeDCHandle hdc, int iPartId, int iStateId, string text, int textLength, User32.DrawTextFlags textFlags, int textFlags2, ref RECT pRect);