The mousePressed variable stores whether a mouse button has been pressed.
The mouseButton variable (see the related reference entry) can be used to
determine which button has been pressed.
Mouse and keyboard events only work when a program has draw().
Without draw(), the code is only run once and then stops
listening forevents.
Examples
Copy
// Click within the image to change
// the value of the rectangle
void draw() {
if (mousePressed == true) {
fill(0);
} else {
fill(255);
}
rect(25, 25, 50, 50);
}