public static extern bool EnumDisplayMonitors(HDC hdc, PRECT lprcClip, MonitorEnumProc lpfnEnum, IntPtr dwData);
public static extern bool ClipCursor(PRECT lpRect);
public static extern int DrawThemeParentBackgroundEx(HandleRef hwnd, Gdi32.SafeDCHandle hdc, DrawThemeParentBackgroundFlags dwFlags, PRECT pRect);
public static extern int GetThemePartSize(SafeThemeHandle hTheme, Gdi32.SafeDCHandle hdc, int part, int state, PRECT pRect, ThemeSize eSize, out Size size);
public static extern int DrawThemeBackground(SafeThemeHandle hTheme, Gdi32.SafeDCHandle hdc, int iPartId, int iStateId, ref RECT pRect, PRECT pClipRect);