自动捕捉当前输入焦点所在窗口信息（显示标题和程序名）。可用于输入焦点无故丢失的时候，找出后台“偷走”焦点的程序。-Auto catpure current focus window, and display the information of the focus window (including the Name and its process name).Help to find out the root cause of focus lost.