代码
import java.awt.*;
import java.awt.datatransfer.*;
import java.awt.event.KeyEvent;
import java.awt.image.BufferedImage;
import javax.swing.*;
import javax.imageio.ImageIO;
import java.io.File;
public class SaveClipboardScreenshot {
public static void main(String[] args) throws Exception {
// get the screenshot
Robot robot = new Robot();
robot.keyPress(KeyEvent.VK_PRINTSCREEN);
robot.delay(40);
robot.keyRelease(KeyEvent.VK_PRINTSCREEN);
robot.delay(404);
Clipboard cb = Toolkit.getDefaultToolkit().getSystemClipboard();
DataFlavor[] flavors = cb.getAvailableDataFlavors();
System.out.println("After: ");
for (DataFlavor flavor : flavors) {
System.out.println(flavor);
if (flavor.toString().indexOf("java.awt.Image")>0) {
Object o = cb.getData(flavor);
Image i = (Image)o;
// ImageIO will not write an Image
// It will write a BufferedImage (a type of RenderedImage)
BufferedImage bi = new BufferedImage(
i.getWidth(null),
i.getHeight(null),
BufferedImage.TYPE_INT_RGB);
Graphics2D g = bi.createGraphics();
g.drawImage(i, 0, 0, null);
g.dispose();
JScrollPane sp = new JScrollPane(new JLabel(new ImageIcon(bi)));
sp.setPreferredSize(new Dimension(800,600));
JOptionPane.showMessageDialog(null, sp);
File f = new File(
System.getProperty("user.home") +
File.separator +
"the.png");
ImageIO.write(bi, "png", f);
}
}
}
}
更新
如何将您的代码用于静态函数?
在 Java 中,它们被称为方法,并且每一个main
都是静态的。
例如返回一个文件。
改变
public static void main(String[] args) throws Exception {
..类似于..
public static File getScreenshot() throws Exception {
..还有改变..
ImageIO.write(bi, "png", f);
..至..
ImageIO.write(bi, "png", f);
return f;