[英]How can I use java to capture the screen of some applications?
我发现 java awt 可以截取全屏,但是如何截取特定应用程序的屏幕? 比如我打开了一个matlab应用和eclipse应用。 而且我无法告诉程序应用程序屏幕的大小,只知道 matlab 现在是一个活动窗口。 我只想捕获 Matlab 的屏幕。 我怎样才能做到这一点?
import java.awt.AWTException;
import java.awt.Rectangle;
import java.awt.Toolkit;
import java.awt.Robot;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.File;
import javax.imageio.ImageIO;
public class Screenshot {
public static final long serialVersionUID = 1L;
public static void main(String[] args)
{
try {
Thread.sleep(120);
Robot r = new Robot();
// It saves screenshot to desired path
String path = "D:// Shot.jpg";
// Used to get ScreenSize and capture image
Rectangle capture =
new Rectangle(Toolkit.getDefaultToolkit().getScreenSize());
BufferedImage Image = r.createScreenCapture(capture);
ImageIO.write(Image, "jpg", new File(path));
System.out.println("Screenshot saved");
}
catch (AWTException | IOException | InterruptedException ex) {
System.out.println(ex);
}
}
}
要截取屏幕一部分的屏幕截图,我们需要指定要截取的矩形区域。以下语句创建一个截取区域,即屏幕的前四分之一。
try {
Robot robot = new Robot();
String format = "jpg";
String fileName = "PartialScreenshot." + format;
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
Rectangle captureRect = new Rectangle(0, 0, screenSize.width / 2, screenSize.height / 2);
BufferedImage screenFullImage = robot.createScreenCapture(captureRect);
ImageIO.write(screenFullImage, format, new File(fileName));
System.out.println("A partial screenshot saved!");
} catch (AWTException | IOException ex) {
System.err.println(ex);
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.