public windowRect(IntPtr hWnd)
{
NativeMethods.GetWindowRect(hWnd, out this);
windowRect delta = new windowRect();
NativeMethods.AdjustWindowRectEx(ref delta, NativeMethods.GetWindowLong(hWnd, GWL_STYLE), false, NativeMethods.GetWindowLong(hWnd, GWL_EXSTYLE));
left -= delta.left;
right -= delta.right + 1;
top -= delta.top;
bottom -= delta.bottom + 1;
}
internal static extern bool AdjustWindowRectEx(ref windowRect rect, int dwStyle, [MarshalAs(UnmanagedType.Bool)] bool bMenu, int dwExStyle);
internal static extern bool GetWindowRect(IntPtr hWnd, out windowRect rect);