Java tutorial
//package com.java2s; import java.awt.*; import java.awt.image.*; public class Main { public static Image getImage(Component c) { GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); GraphicsDevice gd = ge.getDefaultScreenDevice(); GraphicsConfiguration gc = gd.getDefaultConfiguration(); // Create an image that supports transparent pixels BufferedImage bImage = gc.createCompatibleImage(c.getWidth(), c.getHeight(), Transparency.BITMASK); /* * And now this is how we get an image of the component */ Graphics2D g = bImage.createGraphics(); // Then use the current component we're in and call paint on this // graphics object c.paint(g); return bImage; } }