Detect Right and left mouse click

Processing Beginners
1

Hi, I’ve got the problem that I want to detect via a boolean when I press either my left or my right mouse bottom, however, it seems I can’t do it with keyCode.
It would really help a lot if someone could make a small program with a boolean that turns true when the right or left mouse bottom is pressed.
Thank you for the help!

1 Like
2

it has not to do with keys

please check here: mouseButton / Reference / Processing.org

or more general Reference / Processing.org [section Input | Mouse]

Example from the link



// Click within the image and press
// the left and right mouse buttons to 
// change the value of the rectangle
void draw() {
  if (mousePressed && (mouseButton == LEFT)) {
    fill(0);
  } else if (mousePressed && (mouseButton == RIGHT)) {
    fill(255);
  } else {
    fill(126);
  }
  rect(25, 25, 50, 50);
}

Example with setting 2 boolean permanently



// Click within the image and press
// the left and right mouse buttons to 
// change the value of the rectangle

boolean leftButton = false; 
boolean rightButton = false; 

void draw() {
  background(255, 0, 0); 
  if (mousePressed && (mouseButton == LEFT)) {
    fill(0);
    leftButton = true;
  } else if (mousePressed && (mouseButton == RIGHT)) {
    fill(255);
    rightButton = true;
  } else {
    fill(126);
  }
  rect(25, 25, 50, 50);

  fill(255);
  if (leftButton)
    text("Left is on", 12, 12);
  else text("Left is off", 12, 12);
}
3

Hello @jensemand,

Processing resources (tutorials, references, examples, etc.) are here:

Take a look at this tutorial:

:)

4

Thank you! I must have missed mouseButton part before

1 Like