Compare image to actual screen

Question

I\'d like to make my Java program compare the actual screen with a picture (screenshot).

I don\'t know if it\'s possible, but I have seen it in Jitbit (a macro recor

Answer 1

Ok then, so I found an answer after a few days.

This method takes the screenshot:

public static void takeScreenshot() {
        try {
            BufferedImage image = new Robot().createScreenCapture(new Rectangle(490,490,30,30));
/* this two first parameters are the initial X and Y coordinates. And the last ones are the increment of each axis*/
            ImageIO.write(image, "png", new File("C:\\Example\\Folder\\capture.png"));

        } catch (IOException e) {
            e.printStackTrace();
        } catch (HeadlessException e) {
            e.printStackTrace();
        } catch (AWTException e) {
            e.printStackTrace();
        }
    }

And this other one will compare the images

public static String compareImage() throws Exception {

// savedImage is the image we want to look for in the new screenshot.
// Both must have the same width and height

    String c1 = "savedImage";
    String c2 = "capture";

    BufferedInputStream in = new BufferedInputStream(new FileInputStream(c1
            + ".png"));
    BufferedInputStream in1 = new BufferedInputStream(new FileInputStream(
            c2 + ".png"));
    int i, j;
    int k = 1;
    while (((i = in.read()) != -1) && ((j = in1.read()) != -1)) {
        if (i != j) {
            k = 0;
            break;
        }
    }

    in.close();
    in1.close();
    if (k == 1) {

        System.out.println("Ok...");
        return "Ok";            

    } else {
        System.out.println("Fail ...");
        return "Fail";
    }
}