MouseEvent for tracking in all the window

Programming Questions

noplane

MouseEvent for tracking in all the window

in Programming Questions • 1 year ago

Hi!

I try to track the mouse click and scroll in the desktop, over the processing's sketch.

I just found yet how to follow the mouse mouvements :

import java.awt.*;

PGraphics pg;

int mX, mY;

void setup() {

size(int(screenWidth/3), int(screenHeight/3));

pg = createGraphics(screenWidth, screenHeight, P2D);

pg.beginDraw();

background(0);

pg.beginDraw();

}

void setMouseXY(){

Point mouse;

mouse = MouseInfo.getPointerInfo().getLocation();



mX = mouse.x;//winloc.x;

mY = mouse.y;//winloc.y;





}



void draw() {

setMouseXY();



pg.beginDraw();

pg.noStroke();

pg.fill(random(230),240,400,90);

pg.ellipse(mX,mY,12,12);



if(mouseP){

pg.fill(0,255,0);

pg.ellipse(mX,mY,12,12);





}

pg.endDraw();

image(pg, 0, 0, int(screenWidth/3), int(screenHeight/3));

//println( "mX is " + mX + " and mY is " + mY );

}

/*boolean mouseP=false;

void mousePressed(){

println("yopyop");

mouseP=true;

}

void mouseReleased(){

mouseP=false;

}*/

You can try, it works!

I was looking in the java's mouseEvent but I find my limits, how do deal with it?

Thank you for your help!

Replies(2)

Manindra29

Re: MouseEvent for tracking in all the window

1 year ago

I see that you've handled mouseEvents already. For handling mouse scroll, there's a different class called MouseWheelListener. Using it is fairly simple. You can try this example code:

import java.awt.event.*;
public void setup() {
size(400, 400);
addMouseWheelListener(new MouseWheelListener() {
public void mouseWheelMoved(MouseWheelEvent e) {
println("Mouse Wheel: " + e.getWheelRotation() + "," + e.getScrollAmount()+","+e.getUnitsToScroll());
// Mouse Scroll events can be handled here
}
});
}
public void draw() {
}

A thing to be noted is that addMouseWheelListener() should not be used inside draw, that could cause problems as draw() is executed repeatedly.

noplane

Re: MouseEvent for tracking in all the window

1 year ago

Thank you Manindra29, I've tried the addMouseWheelListener(), but unfortunately it works only in the sketch..

I'm still looking!

In the meantime, happy Holidays!

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