Try the following code:
myListener = new Object();
myListener.onKeyUp = function() {
if (Key.isDown(Key.CONTROL) && Key.getCode() == 67) {
//Ctrl+C
trace("Ctrl+C key down!");
}
};
Key.addListener(myListener);
hold ctrl key and start pressing 'c'. From some point you will notice that there is no KEY_UP event fot he 'c' key (there will also be no event for 'a','x','r','v' and maybe more). For most of the button the KEY_UP event will still be dispatched.
Why is that? Is there a solution?