这是一个SDK程序。本程序跟踪显示鼠标的坐标位置，同时，若有鼠标操作，可在窗口标题栏中显示操作信息，要是在窗口客户区中进行双击，就会在双击位置点上显示位置信息。 -This is an SDK program. This procedure tracking shows the coordinates of the mouse position, and if the mouse can be displayed in the window s title bar operating information, if the customer area of the window to double-click, double-click the location of points will be shown on location information.