BewildrTestApp.Window1.drag_lbl_PreviewMouseDown C# (CSharp) 메소드

        private void drag_lbl_PreviewMouseDown(object sender, MouseButtonEventArgs e)
        {
            drag_via_me.AddHandler(Label.MouseEnterEvent, new MouseEventHandler(mouse_enter));
            drag_target.AddHandler(Label.MouseEnterEvent, new MouseEventHandler(mouse_enter));
            drag_canvas.AddHandler(Canvas.MouseMoveEvent, new MouseEventHandler(mouse_move));
            dragPoint = e.GetPosition(drag_lbl);
        }