ARCed.UI.FloatWindow.TestDrop C# (CSharp) Method

        internal void TestDrop(IDockDragSource dragSource, DockOutlineBase dockOutline)
        {
            if (this.VisibleNestedPanes.Count == 1)
            {
                DockPane pane = this.VisibleNestedPanes[0];
                if (!dragSource.CanDockTo(pane))
                    return;

                Point ptMouse = MousePosition;
                uint lParam = Win32Helper.MakeLong(ptMouse.X, ptMouse.Y);
                if (NativeMethods.SendMessage(Handle, (int)Msgs.WM_NCHITTEST, 0, lParam) == (uint)HitTest.HTCAPTION)
                    dockOutline.Show(this.VisibleNestedPanes[0], -1);
            }
        }