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20-01-2009, 09:19 AM
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How to Control your computers mouse using the Robot Class
With this simple tutorial I will show you how to use the Robot Class in Java to control your computers mouse.
We can change the position of the cursor, left and right click, move the mouse wheel and click the mouse wheel. For these examples you will need to make sure you import the java.awt.Robot & java.awt.event.InputEvent classes. Move the mouse cursor position on screen: Java Code
import java.awt.Robot;
public class MouseClass {
public static void main(String[] args) throws Exception {
Robot robot = new Robot();
// SET THE MOUSE X Y POSITION
robot.mouseMove(300, 550);
}
}
Java Code
import java.awt.Robot;
import java.awt.event.InputEvent;
public class MouseClass {
public static void main(String[] args) throws Exception {
Robot robot = new Robot();
// LEFT CLICK
robot.mousePress(InputEvent.BUTTON1_MASK);
robot.mouseRelease(InputEvent.BUTTON1_MASK);
}
}
Java Code
import java.awt.Robot;
import java.awt.event.InputEvent;
public class MouseClass {
public static void main(String[] args) throws Exception {
Robot robot = new Robot();
// RIGHT CLICK
robot.mousePress(InputEvent.BUTTON3_MASK);
robot.mouseRelease(InputEvent.BUTTON3_MASK);
}
}
Java Code
import java.awt.Robot;
import java.awt.event.InputEvent;
public class MouseClass {
public static void main(String[] args) throws Exception {
Robot robot = new Robot();
// MIDDLE WHEEL CLICK
robot.mousePress(InputEvent.BUTTON3_DOWN_MASK);
robot.mouseRelease(InputEvent.BUTTON3_DOWN_MASK);
// SCROLL THE MOUSE WHEEL
robot.mouseWheel(-100);
}
}
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11-02-2009, 08:08 PM
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Re: How to Control your computers mouse using the Robot Class
I notice that when I do not include "throws exception" after the main method the program raises an error when I try to create a robot object.Why is that?
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11-02-2009, 08:17 PM
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Re: How to Control your computers mouse using the Robot Class
Quote:
Classes such as the robot class require you to handle these exceptions. The proper way to do this would be to place the code in a try/catch block but as you can see ive used the lazy mans way and have just thrown the exception. Throwing the exception means that its not caught, its just vanishes into thin air 
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LinkBack to this Thread: http://www.javaprogrammingforums.com/java-code-snippets-tutorials/214-how-control-your-computers-mouse-using-robot-class.html
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