ARCed.UI.DockPanel.DockDragHandler.DockOutline.SetDragForm C# (CSharp) Method

                private void SetDragForm(Rectangle rect)
                {
                    this.DragForm.Bounds = rect;
                    if (rect == Rectangle.Empty)
                        this.DragForm.Region = new Region(Rectangle.Empty);
                    else if (this.DragForm.Region != null)
                        this.DragForm.Region = null;
                }