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 | mouseDragged() |
|---|---|
| Examples |
// Drag (click and hold) your mouse across the
// image to change the value of the rectangle
int value = 0;
void draw() {
fill(value);
rect(25, 25, 50, 50);
}
void mouseDragged()
{
value = value + 5;
if (value > 255) {
value = 0;
}
}
|
| Description |
The mouseDragged() function is called once every time the mouse moves while a mouse button is pressed. (If a button is not being pressed, mouseMoved() is called instead.)
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 | mouseDragged() mouseDragged(event) |
| Returns | void |
| Related | mouseX mouseY pmouseX pmouseY mousePressed mousePressed() mouseReleased() mouseClicked() mouseMoved() mouseButton mouseWheel() |
