WEB开发网
开发学院WEB开发Jsp 如何用java编写扫描仪程序 阅读

如何用java编写扫描仪程序

 2008-01-05 09:58:23 来源:WEB开发网   
核心提示:Q:我想用java开发一个程序,直接从扫描仪获得扫描数据,如何用java编写扫描仪程序,然后上载到服务器上,这样的程序需要利用那些知识点(有关Java)?RE:javatwain may be a powerful solution,you can go to www.gnome.sk to download the

  Q:我想用java开发一个程序,直接从扫描仪获得扫描数据,然后上载到服务器上,这样的程序需要利用那些知识点(有关Java)?
  
  RE:
  javatwain may be a powerful solution,you can go to www.gnome.sk to download the newest package.
  JavaTwain version 5.1 is a part of the Morena 6.0 Framework now.
  
  below is an simple example:
  /*
  * $Id: ExampleShow.java,v 1.5 2002/07/15 13:48:55 mmotovsk EXP $
  *
  * Copyright (c) 1999-2002 Gnome spol. s r.o. All Rights Reserved.
  *
  * This software is the confidential and PRoprietary information of
  * Gnome spol. s r.o. You shall not disclose sUCh Confidential
  * Information and shall use it only in accordance with the terms
  * of the license agreement you entered into with Gnome.
  */
  
  // JavaTwain package version 5.1
  
  /**
  ExampleShow demonstrates how to scan an image using defaults
  from the Twain source.

  */
  import java.awt.*;
  import java.awt.event.*;
  import SK.gnome.twain.*;
  
  public class ExampleShow extends Frame
  { Image image;
  public void paint(Graphics g)
  { if (null!=image)
  g.drawImage(image, 0, 0, this);
  }
  
  WindowListener windowAdapter=new WindowAdapter()
  { public void windowClosing(WindowEvent e)
  { System.exit(0);
  }
  };
  
  public ExampleShow()
  { try
  { addWindowListener(windowAdapter);
  setTitle("ExampleShow Frame application");
  // Open TWAIN select source dialog box
  // and initialize the source selected by the user.
  TwainSource source=TwainManager.selectSource(null);
  image=Toolkit.getDefaultToolkit().createImage(source);
  // wait for the image to be completed
  MediaTracker tracker=new MediaTracker(this);
  tracker.addImage(image, 0);
  // this is the moment the scanner user interface pops up
  System.err.println("Start loading image ...");
  try
  { tracker.waitForAll();
  }
  catch (InterruptedException e)
  { System.err.println("Image loading was interrupted!");
  e.printStackTrace();
  }
  tracker.removeImage(image);
  System.err.println("Image loaded ...");
  setSize(image.getWidth(this), image.getHeight(this));
  setVisible(true);
  TwainManager.close();
  }
  catch (TwainException e)
  { e.printStackTrace();
  }
  }
  
  public static void main(String[] args)
  { new ExampleShow();
  }
  }

Tags:如何 java 编写

编辑录入:爽爽 [复制链接] [打 印]
赞助商链接