磁性窗体的设计。在多媒体播放软件中经常会遇到一种情况。本实例窗体，当拖动主窗体移动时，两个窗体如果相连，则跟随移动-Magnetic form design. In the multimedia player software often encounter a situation. The example form, the main form when the drag moves, the two forms if connected, then follow the move