Everybody is good, I've got a problem, I hope you can help me, for now, I hope to get one in other program window control program of value, but I don't know how to first confirm other program window shows over, what a great god can provide some ideas, I hope can intercept WINDOWS message to make it, or use the hooks, but I can't, hope you can get elder people advice, my development language is c #, thank you.