Input4j is a free and pure Java input library based on the Foreign Function & Memory API (FFM API). This library doesn't have any additional native artifacts and directly interoperates with platform native libraries to access input devices.
⚠ The FFM API has been finalized with (JEP 454) with Java 22. Naturally, this library is only available for the most recent Java versions.
Required version: Java 22
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// iterate all available input devices and poll their data every second
try (var inputDevices = InputDevices.init()) {
while (true) {
for (var inputDevice : inputDevices.getAll()) {
// print all devices and polled data to the console
System.out.println(inputDevice.getInstanceName());
System.out.println("\t" + inputDevice.getComponents());
}
Thread.sleep(1000);
}
}- Windows: DirectInput ✅
- Windows: XInput ❌
- Linux: Linux Input (evdev) 🚧
- OSX: IOKIT ❌
- OSX: Game Controller ❌