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protected override void WndProc(ref Message m)
{
base.WndProc(ref m);
switch (m.Msg)
{
case Win32Methods.WM_NCHITTEST:
if ((int)m.Result == Win32Methods.HTCLIENT)
{
Point pt = new Point((int)m.LParam);
pt = PointToClient(pt);
Control control = GetChildAtPoint(pt);
if (control is Panel)
{
m.Result = (IntPtr)Win32Methods.HTCAPTION;
}
}
break;
}
}