JNativeHook is a library to provide global keyboard and mouse listeners for Java. This will allow you to listen for global shortcuts or mouse motion that would otherwise be impossible using pure Java. To accomplish this task, JNativeHook leverages platform-dependent native code through Java's native interface to create low-level system-wide hooks and deliver those events to your application.
The following events are available via their respective listeners.
- Key Press Events
- Key Release Events
- Key Typed Events
- Mouse Down Events
- Mouse Up Events
- Mouse Click Events
- Mouse Move Events
- Mouse Drag Events
- Mouse Wheel Events
In addition to global event listners, this library has the ability to post native events back to the native operating system.
JNativeHook is covered under both the GNU General Public and GNU Lesser General Public Licenses as the latter is an extension of the former granting you additional distribution rights. As I understand it, you may use this library in proprietary projects so long as it remains an external library with the same binary interface. You may modify the source code of this library to fulfill a propritary need, so long as that source code is made public under the aforementioned terms. Please consult with a licenced attorney if you have licence compatibility questions or concerns.
Binary distribution for JNativeHook can be found at the
releases section of the
project page. Maven users can
to include this library automatically. The nightly builds can be found at the maven
Software and Hardware Requirements
- Java 1.5 - 1.8
- 256 MB of RAM
- Apple OS X 10.5 - 10.12
- i586, amd64
- Enable Access for Assistive Devices
- Windows 2000 - 10
- i586, amd64
- X11 Linux
- i586, amd64, arm6j
Detailed instructions to compile from source are available in the wiki.
The graphical example application was created to provided a real-time demonstration of raw output for all available native events. To run the application simply execute the jar file provided. Source code available at src/java/org/jnativehook/example/NativeHookDemo.java.
- Global Keyboard Listener
- Global Mouse Listener
- Global Mouse Wheel Listener
- Thread Safety for AWT, Swing and JavaFX
- Logging and Console Output
- Advanced Library Loading
- Consuming Events (Unsupported)
Up to date source code and documentation available at: https://github.com/kwhat/jnativehook/