barka 
I want to open and close one led ,that is connected on GPIO interface(PORT F-->GPF0-->EINT0-->Pin9),with two button (visual c++) under wince 6.0. Like this example: http://www.youtube.com/watch?v=9tr2FXdrZYg How can I do this? or How can I write this with c++? My ce 6.0 image has GPIO driver.(http://www.thaieasyelec.com/Free-Service-from-ThaiEasyElec/ARM9-mini2440...) Thanks