public static extern int DwmExtendFrameIntoClientArea(IntPtr hdc, ref MARGINS marInset);
public static extern int DwmExtendFrameIntoClientArea(IntPtr hdc, ref MARGINS marInset);
public static extern int DwmExtendFrameIntoClientArea(IntPtr hdc, ref MARGINS marInset);
public static extern int DwmExtendFrameIntoClientArea(IntPtr hdc, ref MARGINS marInset);