How to block double click in overridden WndProc function in Windows Forms?

Question

I have a form created in Windows Forms which is draggable wherever I click. I made it by overriding WndProc function which in turn modifies each click as it was a title bar

Answer 1

I've done the same as Jex which is working great.

private const int WM_NCHITTEST = 0x84;
private const int HTCLIENT = 0x1;
private const int HTCAPTION = 0x2;
private const int WM_LBUTTONDBLCLK = 0x00A3;

protected override void WndProc(ref Message m)
    {
        if (m.Msg == WM_LBUTTONDBLCLK)
        {
            return;
        }
        switch (m.Msg)
        {

            case WM_NCHITTEST:      
                base.WndProc(ref m);
                if ((int)m.Result == HTCLIENT)
                    m.Result = (IntPtr)HTCAPTION;
                return;
        }
        base.WndProc(ref m);
    }