Swing

知識點介紹
        JComponent提供了兩個方法，print和printall可以將組件使用Graphics圖形環境進行繪制，即將組件本身的內容都繪制到Graphics上，我們如果想要將組件保存成圖片的話，只需要創建一個image對象，然后將其Graphics對象傳遞進去即可，如下所示
BufferedImage image = new BufferedImage(imgW + xgap * 2, imgH + ygap * 2, BufferedImage.TYPE_INT_ARGB);
 Graphics2D g = (Graphics2D) image.getGraphics();
component.print(g);
    

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                                                                                                                                                                                                             by zhangtao

                                                                                                                                                                                                             2009.6.7