This reference is for Processing 3.0+. If you have a previous version, use the reference included with your software in the Help menu. If you see any errors or have suggestions, please let us know. If you prefer a more technical reference, visit the Processing Core Javadoc and Libraries Javadoc.

Name

mouseClicked()

Examples
// Click within the image to change 
// the value of the rectangle after
// after the mouse has been clicked

int value = 0;

void draw() {
  fill(value);
  rect(25, 25, 50, 50);
}

void mouseClicked() {
  if (value == 0) {
    value = 255;
  } else {
    value = 0;
  }
}
Description The mouseClicked() function is called after a mouse button has been pressed and then released.

Mouse and keyboard events only work when a program has draw(). Without draw(), the code is only run once and then stops listening for events.
Syntax
mouseClicked()
mouseClicked(event)
Returnsvoid
RelatedmouseX
mouseY
pmouseX
pmouseY
mousePressed
mousePressed()
mouseReleased()
mouseMoved()
mouseDragged()
mouseButton
mouseWheel()
Updated on January 21, 2019 10:05:09am EST

Creative Commons License