Exemple #1
0
        protected override void WndProc(ref Message m)
        {
            switch (m.Msg)
            {
            case 0x7b:                     //WM_CONTEXTMENU
            {
                int   lp = m.LParam.ToInt32();
                Point pt = new Point(((lp << 16) >> 16), lp >> 16);
                pt = PointToClient(pt);
                IntPtr hHdr = HeaderHandle;
                var    hti  = new NativeMethods.HDHITTESTINFO(pt);
                int    item = NativeMethods.SendMessage(hHdr, NativeMethods.HeaderMessage.HitTest, 0, hti).ToInt32();
                if (item != -1)
                {
                    if (ColumnContextMenuStrip != null)
                    {
                        ColumnContextMenuStrip.Show(this, pt);
                    }
                }
            }
            break;

            case 0x204E:                     // WM_NOTIFY
                WmReflectNotify(ref m);
                break;

            case 0x0200:                     // WM_MOUSEMOVE
                return;

            case 0x0202:                     // WM_LBUTTONUP
            default:
                break;
            }
            try { base.WndProc(ref m); } catch (Exception ex) { System.Diagnostics.Debug.WriteLine($"ListViewEx WndProc Error: {m} - {ex}"); }
        }
Exemple #2
0
        private void WmReflectNotify(ref Message m)
        {
            var nm = (NativeMethods.NMHDR)m.GetLParam(typeof(NativeMethods.NMHDR));

            if (nm.code == (int)NativeMethods.ListViewNotifications.ColumnDropDown)
            {
                var nmlv = (NativeMethods.NMLISTVIEW)m.GetLParam(typeof(NativeMethods.NMLISTVIEW));
                var iCol = nmlv.iSubItem;
                NativeMethods.RECT rc = new NativeMethods.RECT();
                NativeMethods.SendMessage(HeaderHandle, (uint)NativeMethods.HeaderMessage.GetItemDropDownRect, (IntPtr)iCol, ref rc);
                rc = RectangleToClient(rc);
                if (ColumnContextMenuStrip != null)
                {
                    ColumnContextMenuStrip.Tag = iCol;
                    ColumnContextMenuStrip.Show(this, rc.X, rc.Bottom);
                }
            }
        }
        protected override void WndProc(ref Message m)
        {
            switch (m.Msg)
            {
            case 0x7b:                     //WM_CONTEXTMENU
            {
                int    lp   = m.LParam.ToInt32();
                Point  pt   = new Point(((lp << 16) >> 16), lp >> 16);
                IntPtr hHdr = HeaderHandle;
                if (0 != NativeMethods.MapWindowPoints(IntPtr.Zero, hHdr, ref pt, 1))
                {
                    var hti  = new NativeMethods.HDHITTESTINFO(pt);
                    int item = NativeMethods.SendMessage(hHdr, NativeMethods.HeaderMessage.HitTest, 0, hti).ToInt32();
                    if (item != -1)
                    {
                        if (ColumnContextMenuStrip != null)
                        {
                            ColumnContextMenuStrip.Show(pt);
                        }
                    }
                }
            }
            break;

            case 0x204E:                     // WM_NOTIFY
                WmReflectNotify(ref m);
                break;

            case 0x0200:                     // WM_MOUSEMOVE
                return;

            case 0x0202:                     // WM_LBUTTONUP
            default:
                break;
            }
            base.WndProc(ref m);
        }