问题
Is there a way to listen to the mouse and keyboard events system-wide without taking these out of system queue?
E.g. is there a way to set a demon, let's say, which would listen and report each and every keyboard and mouse event?
回答1:
It's not possible using pure Java. But you can use JNI (Java Native Interface), which is working on code written in C++ and natively compiled. So, this way you can write the Global KeyListener in C++ and let make Java use of it.
There is an active project implementing this for Linux, OS X and Windows: http://code.google.com/p/jnativehook/
来源：https://stackoverflow.com/questions/7489037/java-system-wide-keyboard-and-mouse-state