jnativehook | Global keyboard and mouse listeners for Java | Keyboard library

I needed a KeyListener which also works outside a focused GUI component, so after performing research I came across the JNativeHook library. But as soon as I downloadet the ZIB file (from here) and added the jnativehook-2.1.0.jar to my Eclipse project (Properties -> Java Build Path -> Libraries -> Add External Jar) a Error message occurs while running a testprogramm.

Error: Could not find or load main class key.GlobalKeyListenerExample Caused by: java.lang.NoClassDefFoundError: org/jnativehook/keyboard/NativeKeyListener

This is the first time where I use a external Jar, so I wanted to ask if I did something wrong, or what I need to do to solve this Problem.

My Program:

Developing a rudimentary, open-source keyboard and mouse on-screen display desktop application for screen casting, called KmCaster:

The application uses the JNativeHook library to receive global keyboard and mouse events, because Swing's Key and Mouse listeners are restricted to receiving events directed at the application itself.

When the application loses focus, the user interface shows intermittent key presses, rather than every key press. Yet the console shows that the application has received every key press.

A short, self-contained, compileable example:

I am trying to use maven to build a JNI project and I am running into some difficulty creating a GA release. The project's native code needs to be compiled on at least 3 systems (Linux, OSX, Windows) due to the native code requirements. I would also like GitHub Actions to produce a release build when I create a tag on GitHub. Because of this, I am facing a number of issues with the maven release plugin. It seems like maven's release process involves compiling and testing the code as well as screwing around with SCM before I can create a GA version and release. This simply isn't possible for this JNI project. I have already gone down the cross compiler route with Ant and I would really like to move away from that for any number of reasons, mostly Apple related. I also thought about releasing each JNI target individually, but I would really like to bundle the native code inside of the JAR and things start getting complicated when I need to share a .m2 folder across different build environments. Is it possible to release a maven project without all the compiling, testing and SCM nonsense? Maybe a different 3rd party plugin? Is there a better way I should be doing this? For reference, the pom can be found here.

I'm developing a javafx application using,

• gradle
• OpenJdk11
• OpenJfx11
• sqlite (It also stored inside main package as sqlite.db)

Now I need to build .deb file for ubuntu installation and .exe file for window installation

build.gradle here

My local branch is not uploading to master because, as the error output states, "downloads/ue4-test-8.zip is 363.08 MB; this exceeds GitHub's file size limit of 100.00 MB" I already removed this file and yet any commits I make get rejected.

• I've removed the large file.
• I thought everything would be fine so I added new files to the respiratory
• Now I get error when going to push about a file that doesn't exist

How can I resolve this problem and get back to pushing this repo?

Here is my output log:

I am creating a background Java program that will take input from a USB-enabled NFC reader and perform an API request with the data found on it (a 10 digit number). However, the readers have no software of their own, and behave like a keyboard, entering the number scanned into any selected text field.

Using JNativeHook, I was able to create a keylogger type of software that waits until a 10 digit number has been entered rapidly, then makes the API request. This approach works great, but the number is still entered in any foreground/selected text field, so I've been looking for ways to fix that.

I was wondering if there was a way to either validate all text inputs before displaying them or immediately backspace this number once it is entered.

If you would like to take a look at the entire (small) project, it is available here.

CardReaderKeylogger.java:

i'm stuck at capturing keyboard events.

I'm working with a barcode scanner which is detected by system as traditional keyboard (it is it's only mode, my client has a lot of budget scanners which can't emulate virtual com port).

My goal is to be able to detect at which port is this scanner plugged in, capture any input from that port, and prevent it from being handled by the OS (i don't want the barcode numbers popping up on focused input).

All this must be performed by a background service, which is never an active window, AND the solution must work both on linux and on windows.

I've been able to capture the input using jnativehook, but failed to prevent it from being handled by OS.

As far as i know, it is impossible to achieve this using pure java (JVM gives access to keyboard events only when application window is focused), so how should i handle this issue? I'm okay with using jni and c++ if that's necessary, but i don't know where to start.

I'm trying to use jnativehook for global keyboard listeners but it seems like the key codes are different. For example, I want to check if ALT + I is pressed:

i am currently trying to make a shift key holder with java using the grave accent as the toggle and robot was the only way i could find that was remotely simple. the program does what the name implies, and holds down the shift key for me. making the program for starbound building if you are wondering where this will be useful, as there is capslock. however when using robot i have to throw a few exceptions, but they then appear in the place that i am calling my void

i can't find any solution for this possibly because i am using the JNativeHook library to create a keylogger that will react to the grave symbol. i am still fairly new and i pieced a lot of this together from snippets online.

this is where my error is coming from, the full program is available here i would post a minimum reproducible example but i cannot as i don't know what parts are crucial to the function of this one part.