Here you can find the source of getMonitorNumberAtLocation(Point pos)
public static int getMonitorNumberAtLocation(Point pos)
//package com.java2s; /*/*from www .ja va 2 s. c om*/ * Copyright 2015 dorkbox, llc * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.awt.GraphicsConfiguration; import java.awt.GraphicsDevice; import java.awt.GraphicsEnvironment; import java.awt.Point; import java.awt.Rectangle; public class Main { public static int getMonitorNumberAtLocation(Point pos) { GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); GraphicsDevice screenDevices[] = ge.getScreenDevices(); for (int i = 0; i < screenDevices.length; i++) { final GraphicsDevice device1 = screenDevices[i]; GraphicsConfiguration gc = device1.getDefaultConfiguration(); Rectangle screenBounds = gc.getBounds(); if (screenBounds.contains(pos)) { return i; } } // we are the primary monitor, so return 0. return 0; } }