mouseClicked() / Reference / Processing.org

Name

mouseClicked()

Description

The mouseClicked() function is called after a mouse button has been pressed and then released.

This function can be called with or without a MouseEvent parameter. When called with the parameter, you get access to additional information about the mouse event, including the exact coordinates, which button was clicked, and any modifier keys that were held down.

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.

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;
  }
}

Syntax

mouseClicked()
mouseClicked(event)

Parameters

event(MouseEvent)the MouseEvent

Return

void

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