拍摄Java中Windows（.exe）上特定应用程序的屏幕截图

Question

Is it possible to take a screen capture of a specific application/exe launched on Windows in Java ?

I tried this code but it does not take a capture of the application itself and return a black picture:

try {
    ...
    Robot robot = new Robot();
Rectangle captureSize = new Rectangle(Toolkit.getDefaultToolkit().getScreenSize());
    BufferedImage bufferedImage = robot.createScreenCapture(captureSize);
    ImageIO.write(bufferedImage,"png",myFile);  
    ...
}    catch(AWTException e) {
    System.err.println("call a doc!");
}

This is why I think that forcing a screenshot linked with the process launched may solve the problem.

Or maybe they are other ways to take a capture of the displayed screen? (if yes could you please show me some working code?)

Answer 1

Check this code .

public static void main(String[] args) throws Exception {
        // TODO Auto-generated method stub
        Rectangle screenRect = new Rectangle(Toolkit.getDefaultToolkit().getScreenSize());
        BufferedImage capture = new Robot().createScreenCapture(screenRect);
        ImageIO.write(capture, "bmp", new File("D:/Newimage.bmp"));     
    }