BrightIdeasSoftware.ObjectListView.HandleLButtonDown C# (CSharp) Method

        protected virtual bool HandleLButtonDown(ref Message m)
        {
            // We have to intercept this low level message rather than the more natural
            // overridding of OnMouseDown, since ListCtrl's internal mouse down behavior
            // is to select (or deselect) rows when the mouse is released. We don't
            // want the selection to change when the user checks or unchecks a checkbox, so if the
            // mouse down event was to check/uncheck, we have to hide this mouse
            // down event from the control.

            int x = m.LParam.ToInt32() & 0xFFFF;
            int y = (m.LParam.ToInt32() >> 16) & 0xFFFF;

            return this.ProcessLButtonDown(this.OlvHitTest(x, y));
        }