I made a MFC procedures, in use process will not press the mouse and keyboard, after a long time there will be a screen saver, but operators need to see the program drawing curves, each time to press the keyboard or mouse to exit the screen saver, very troublesome, this program only need to operating personnel curve, do not need operation, how to implement, in a program curve shows that the automatic exit screen saver (don't need to click the mouse and keyboard), there is no time curve again screen saver, curve and then automatically exit screen saver, consult about how to implement this feature?