[RESOLVED]how to pass control between PDA keyboard and touch screen?

[scotish_bagpipe]

hi pete, it means, if you press the 'adjust focus' button from keyboard, it won't make any changes on screen. you have to use the touch screen instead . every time i rerun the program if first time i use the touch screen(there are buttons on the screen) to do some operations like adjust focus, turn the camera light on/off, turn laser on/off, it works fine(which means the camera screen can according to my press the touch screen's button to act the correct command). but if i use keyboard,(i remaped the keyboard e.g. i set PDA keypad F4 key as 'adjust focus', set F5 as 'turn lights on' etc.) nothing happens.
and the wired thing is, when first time the program running, if you use PDA keypad to adjust focus(like press key F4 on keypad it works fine), and then if you turn to use the touch screen to ajdust the focus it still works, but if you decide back to use the PDA keypad to adjust the focus again, nothing happens. (oh actually, if you use the touch screen button to change focus, turn lights on/off it always works fine. the problem only happens on when you want to use the keypad to do the same thing instead of use touch screen.) so that's way i suspect it might be window control problem. but i don't how to solve it.
you talk about re-active the keyboard, can you tell me how to do this ?
many thanks