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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) 2006-2015 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 
#include 

#include "jni_Converter.h"
#include "org_jnativehook_NativeInputEvent.h"
#include "org_jnativehook_keyboard_NativeKeyEvent.h"
#include "org_jnativehook_mouse_NativeMouseEvent.h"
#include "org_jnativehook_mouse_NativeMouseWheelEvent.h"


jint jni_ConvertToJavaType(event_type nativeType, jint *javaType) {
	jint status = JNI_OK;

	switch (nativeType) {
		case EVENT_KEY_TYPED:
		case EVENT_KEY_PRESSED:
		case EVENT_KEY_RELEASED:
			// 3 = EVENT_HOOK_ENABLED + EVENT_HOOK_DISABLED + UNDEFINED.
			*javaType = org_jnativehook_keyboard_NativeKeyEvent_NATIVE_KEY_FIRST + (nativeType - 3);
			break;

		case EVENT_MOUSE_CLICKED:
		case EVENT_MOUSE_PRESSED:
		case EVENT_MOUSE_RELEASED:
		case EVENT_MOUSE_MOVED:
		case EVENT_MOUSE_DRAGGED:
		case EVENT_MOUSE_WHEEL:
			// 6 = (NATIVE_KEY_LAST - NATIVE_KEY_FIRST) + EVENT_HOOK_ENABLED + EVENT_HOOK_DISABLED + UNDEFINED.
			*javaType = org_jnativehook_mouse_NativeMouseEvent_NATIVE_MOUSE_FIRST + (nativeType - 6);
			break;

		default:
			*javaType = 0;
			status = JNI_ERR;
			break;
	}

	return status;
}


jint jni_ConvertToNativeType(jint javaType, event_type *nativeType) {
	jint status = JNI_OK;

	switch (javaType) {
		case org_jnativehook_keyboard_NativeKeyEvent_NATIVE_KEY_TYPED:
		case org_jnativehook_keyboard_NativeKeyEvent_NATIVE_KEY_PRESSED:
		case org_jnativehook_keyboard_NativeKeyEvent_NATIVE_KEY_RELEASED:
			*nativeType = (javaType + 3) - org_jnativehook_keyboard_NativeKeyEvent_NATIVE_KEY_FIRST;
			break;

		case org_jnativehook_mouse_NativeMouseEvent_NATIVE_MOUSE_CLICKED:
		case org_jnativehook_mouse_NativeMouseEvent_NATIVE_MOUSE_PRESSED:
		case org_jnativehook_mouse_NativeMouseEvent_NATIVE_MOUSE_RELEASED:
		case org_jnativehook_mouse_NativeMouseEvent_NATIVE_MOUSE_MOVED:
		case org_jnativehook_mouse_NativeMouseEvent_NATIVE_MOUSE_DRAGGED:
		case org_jnativehook_mouse_NativeMouseEvent_NATIVE_MOUSE_WHEEL:
			*nativeType = (javaType + 6) - org_jnativehook_mouse_NativeMouseEvent_NATIVE_MOUSE_FIRST;
			break;

		default:
			*nativeType = 0;
			status = JNI_ERR;
			break;
	}

	return status;
}

jint jni_ConvertToJavaLocation(unsigned short int nativeKeyCode, jint *javaKeyLocation) {
	jint status = JNI_OK;

	switch (nativeKeyCode) {
		case VC_SHIFT_L:
		case VC_CONTROL_L:
		case VC_ALT_L:
		case VC_META_L:
			*javaKeyLocation = org_jnativehook_keyboard_NativeKeyEvent_LOCATION_LEFT;
			break;

		case VC_SHIFT_R:
		case VC_CONTROL_R:
		case VC_ALT_R:
		case VC_META_R:
			*javaKeyLocation = org_jnativehook_keyboard_NativeKeyEvent_LOCATION_RIGHT;
			break;

		case VC_KP_0:
		case VC_KP_1:
		case VC_KP_2:
		case VC_KP_3:
		case VC_KP_4:
		case VC_KP_5:
		case VC_KP_6:
		case VC_KP_7:
		case VC_KP_8:
		case VC_KP_9:

		case VC_NUM_LOCK:
		case VC_KP_ENTER:
		case VC_KP_MULTIPLY:
		case VC_KP_ADD:
		case VC_KP_SEPARATOR:
		case VC_KP_SUBTRACT:
		case VC_KP_DIVIDE:
		case VC_KP_COMMA:
			*javaKeyLocation = org_jnativehook_keyboard_NativeKeyEvent_LOCATION_NUMPAD;
			break;

		default:
			*javaKeyLocation = org_jnativehook_keyboard_NativeKeyEvent_LOCATION_STANDARD;
			break;
	}

	return status;
}