主要使用
是java.util.Robot类来捕获屏幕,可以实现对屏幕
个矩形区域捕获,通过这个类,我们也可以实现个远程桌面控制
package com.qiu.util;
import java.io.*;
import java.net.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import javax.imageio.*;
import java.io.*;
/** *//**@Author Qiu_BaiChao
*
个简单屏幕抓图 如抓取http://www.bt285.cn/content.php?id=1196863 中
甜性涩爱照片 *
**/
public
ScreenCapture { //test
public
void (String
args) throws Exception{ String userdir =
.getProperty("user.dir"); File tempFile =
File("d:","temp.png"); ScreenCapture capture = ScreenCapture.getInstance
; capture.captureImage
; JFrame frame =
JFrame; JPanel panel =
JPanel; panel.
Layout( BorderLayout); JLabel imagebox =
JLabel; panel.add(BorderLayout.CENTER,imagebox);
imagebox.
Icon(capture.getPickedIcon); capture.saveToFile(tempFile);
capture.captureImage
; imagebox.
Icon(capture.getPickedIcon); frame.
ContentPane(panel); frame.
Size(400,300); frame.show
; .out.pr
ln("Over"); }
private ScreenCapture
{ try{
robot =
Robot; }
catch(AWTException e) {
.err.prln("Internal Error: " + e); e.pr
StackTrace; }
JPanel cp = (JPanel)dialog.getContentPane
; cp.
Layout( BorderLayout); labFullScreenImage.addMouseListener(
MouseAdapter { public void mouseReleased(MouseEvent evn) {
isFirstPo
= true; pickedImage = fullScreenImage.getSubimage(recX,recY,recW,recH);
dialog.
Visible(false); }
});
labFullScreenImage.addMouseMotionListener(
MouseMotionAdapter { public void mouseDragged(MouseEvent evn) {
(isFirstPo) { x1 = evn.getX
; y1 = evn.getY
; isFirstPo
= false; }
{ x2 = evn.getX
; y2 = evn.getY
; maxX = Math.max(x1,x2); maxY = Math.max(y1,y2); minX = Math.min(x1,x2); minY = Math.min(y1,y2); recX = minX;
recY = minY;
recW = maxX-minX;
recH = maxY-minY;
labFullScreenImage.drawRectangle(recX,recY,recW,recH);
}
}
public void mouseMoved(MouseEvent e) {
labFullScreenImage.drawCross(e.getX
,e.getY); }
});
cp.add(BorderLayout.CENTER,labFullScreenImage);
dialog.
Cursor(Cursor.getPre
dCursor(Cursor.CROSSHAIR_CURSOR)); dialog.
AlwaysOnTop(true); dialog.
MaximumSize( Toolkit.getDefaultToolkit
.getScreenSize); dialog.
Undecorated(true); dialog.
Size(dialog.getMaximumSize); dialog.
Modal(true); }
//Singleton Pattern
public
ScreenCapture getInstance { 
defaultCapturer; }
/** *//**捕捉全屏慕*/
public Icon captureFullScreen
{ fullScreenImage = robot.createScreenCapture(
Rectangle( Toolkit.getDefaultToolkit
.getScreenSize)); ImageIcon icon =
ImageIcon(fullScreenImage); icon; }
/** *//**捕捉屏幕
个矫形区域 */
public void captureImage
{ fullScreenImage = robot.createScreenCapture(
Rectangle( Toolkit.getDefaultToolkit
.getScreenSize)); ImageIcon icon =
ImageIcon(fullScreenImage); labFullScreenImage.
Icon(icon); dialog.
Visible(true); }
/** *//**得到捕捉后
BufferedImage*/ public BufferedImage getPickedImage
{ pickedImage; }
/** *//**得到捕捉后
Icon*/ public ImageIcon getPickedIcon
{ ImageIcon(getPickedImage); }
/** *//**储存为
个文件,为PNG格式 *@deprecated
*replaced by saveAsPNG(File file)
**/
@Deprecated
public void saveToFile(File file) throws IOException{
ImageIO.write(getPickedImage
,defaultImageFormater,file); }
/** *//**储存为
个文件,为PNG格式*/ public void saveAsPNG(File file) throws IOException {
ImageIO.write(getPickedImage
,"png",file); }
/** *//**储存为
个JPEG格式图像文件*/ public void saveAsJPEG(File file) throws IOException {
ImageIO.write(getPickedImage
,"JPEG",file); 
最新评论