CODEWITHSUNDEEP
javargb
user2950612
user2950612

Reputation: 13

RGB values under the mouse cursor

Using these classes :

import java.awt.AWTException;
import java.awt.Color;
import java.awt.MouseInfo;
import java.awt.Point;
import java.awt.PointerInfo;
import java.awt.Robot;
import javax.swing.JFrame;

How can i get my program to read the rgb values under my mouse while i hover over the screen and have a Jframe display the color itself. the rgb values. and possibly the name of the color

Upvotes: 1

Views: 1562

Answers (1)

An SO User
An SO User

Reputation: 25028

package stack;

import java.awt.Color;
import java.awt.MouseInfo;
import java.awt.Point;
import java.awt.PointerInfo;
import java.awt.Robot;

public class TheColorInfo {
    static PointerInfo pointer;
    static Point point;
    static Robot robot;

    static Color color;

    public static void main(String[] args) {
        try{
            robot = new Robot();

            while(true){
                pointer = MouseInfo.getPointerInfo();
                point = pointer.getLocation();
                if(point.getX() == 0 && point.getY() == 0){
                    break; // stop the program when you go to (0,0)
                }else{
                    color = robot.getPixelColor((int)point.getX(),(int)point.getY());
                    System.out.println("Color at: " + point.getX() + "," + point.getY() + " is: " + color);
                }
            }
        }catch(Exception e){

        }
    }
}

The SSCCE above shows how you can go about getting the color of any pixel on the screen using the Robot class.

Since the return type of getPixelColor() is java.awt.Color, you can extract the red, green and blue values of the pixel. I have left adding the GUI to you.

Upvotes: 2

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