hi everybody..
i want to capture the mouse events (click,double..,position ) as well as keyboard events (key strokes) for every application running separately??
does anybody know how can i do this?it is very important to me.
i appreciate you,if you help me..
thanks.

You will need to listen using the X server API directly, using XEvent. Please note that programs such as this are generally referred to as key loggers, etc. and are considered to be Malware.