Here you can find the source of acquireScreenshot(Component component)
public static BufferedImage acquireScreenshot(Component component) throws AWTException
//package com.java2s; /*/*from ww w . j ava2 s.c o m*/ * The MIT License (MIT) * * Copyright (c) 2010 Technische Universitaet Berlin * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ import java.awt.AWTException; import java.awt.Component; import java.awt.Graphics; import java.awt.Insets; import java.awt.Rectangle; import java.awt.Window; import java.awt.image.BufferedImage; public class Main { /** Makes a hardcopy image from the given component. */ public static BufferedImage acquireScreenshot(Component component) throws AWTException { Rectangle rect = component.getBounds(); Insets insets = null; if (component instanceof Window) { insets = ((Window) component).getInsets(); rect.width -= insets.left + insets.right; rect.height -= insets.top + insets.bottom; } BufferedImage image = new BufferedImage(rect.width, rect.height, BufferedImage.TYPE_INT_RGB); Graphics gr = image.getGraphics(); if (insets != null) { gr.translate(-insets.left, -insets.top); } component.paintAll(gr); gr.dispose(); return image; } }