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Global keyboard and mouse listeners for Java.

There is a newer version: 2.1.0

/* JNativeHook: Global keyboard and mouse hooking for Java.
 * Copyright (C) 2006-2017 Alexander Barker.  All Rights Received.
 * https://github.com/kwhat/jnativehook/
 *
 * JNativeHook is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * JNativeHook is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see .
 */

#include "NativeErrors.h"
#include "NativeGlobals.h"

void ThrowFatalError(const char *message) {
	#ifdef DEBUG
	fprintf(stderr, "Fatal Error: %s\n", message);
	#endif

	JNIEnv *env = NULL;
	if ((*jvm)->GetEnv(jvm, (void **)(&env), jni_version) == JNI_OK) {
		(*env)->FatalError(env, message);
	}

	exit(EXIT_FAILURE);
}

void ThrowException(const char *classname, const char *message) {
	JNIEnv *env = NULL;
	if ((*jvm)->GetEnv(jvm, (void **)(&env), jni_version) == JNI_OK) {
		// Locate our exception class.
		jclass clsException = (*env)->FindClass(env, classname);

		if (clsException != NULL) {
			(*env)->ThrowNew(env, clsException, message);
			#ifdef DEBUG
			fprintf(stderr, "ThrowException(): %s: %s\n", classname, message);
			#endif
			(*env)->DeleteLocalRef(env, clsException);
		}
		else {
			clsException = (*env)->FindClass(env, NO_CLASS_DEF_FOUND_ERROR);

			if (clsException != NULL) {
				(*env)->ThrowNew(env, clsException, classname);
				#ifdef DEBUG
				fprintf(stderr, "ThrowException(): %s: %s\n", NO_CLASS_DEF_FOUND_ERROR, classname);
				#endif
				(*env)->DeleteLocalRef(env, clsException);
			}
			else {
				// Unable to find exception class, Terminate with error.
				ThrowFatalError("Unable to locate exception class.");
			}
		}
	}
}