How to detect mouse moving while left button down?

Question

I would like to detect mouse moving, while the left button is pressed.

I simply create a drawing application. I can detect the mouse move without any mouse pressed. But I want to detect WITH left mouse pressed.

I think there is not any listener for this. So, what is the idea to do that?

Answer 1

component.addmouseMotionListener(new MouseAdapter() {
    public void mouseDragged(MouseEvent evt) {
       if ( SwingUtilities.isLeftMouseButton(evt)) {
         // do your stuff here
       }
    }
});