public static Rectangle GetExtendedFrameBounds(IntPtr windowHandle)
{
var rect = new WinApi.RECT();
if (DwmGetWindowAttribute(windowHandle, DWMWA_EXTENDED_FRAME_BOUNDS, ref rect, (UInt32)Marshal.SizeOf(typeof(WinApi.RECT))) != 0)
{
// fallback
WinApi.GetWindowRect(windowHandle, out rect);
}
return(new Rectangle(rect.left, rect.top, rect.right - rect.left + 1, rect.bottom - rect.top + 1));
}
private static extern int DwmGetWindowAttribute(IntPtr hwnd, UInt32 dwAttribute, ref WinApi.RECT pvAttribute, UInt32 cbAttribute);
