测试鼠标位置的源程序-test mouse location of the source

kalman跟踪小程序，跟踪鼠标的位置变化。-kalman example

在界面上点击确定方框起始点位置，拉动鼠标生成方框，自动添加颜色-Click ok on the interface box starting point position, pull the mouse generated box, automatically adds the color

vs2015上测试没问题，把鼠标放在指定位置按F1获取窗口信息，输入窗口信息敲回车改变窗口标题-Vs2015 on the test no problem, the mouse on the specified location by F1 to obtain the window information, enter the window information to change the window title