java - Java 中 DirectX 程序的全屏捕获(Javacv？)

Question

[对于 Windows]我知道可以捕获在 C# 语言下运行的 DirectX 程序的屏幕，但是您知道一些 Java 示例代码吗？

我实际上面临着与这个相同的问题 Take screen shots inside of full screen applications with java? .机器人类(class)没有帮助，也没有用。

但是我还没有在互联网上找到任何与此相关的 Java 代码示例。感谢您就此主题提供的任何帮助。

Answer 1

由于我在这方面做了更多工作，另请参阅:

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 ClipboardScreenshot {

    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);
            }
        }
    }
}