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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 | ### captureEvent()
Examples |
    import processing.video.*;
    Capture cam;

    void setup() {
      size(200, 200);
      cam = new Capture(this);
      cam.start();
    }

    void draw() {
      image(cam, 0, 0);
    }

    void captureEvent(Capture c) {
      c.read();
    }
Description | This event function is run when a new camera frame is available. Use the read() method to capture this frame. If there is more than one capture device in the program, captureEvent() is called each time any of the devices has a new frame available. Use an if within the function to determine which device is triggering the event. This function is for people who want to process the image data separately from drawing (and as quickly as possible.) You cannot draw to the screen inside the captureEvent() function. If you want to draw immediately based on the new image, then use the Capture.available() method.
Syntax |
    void captureEvent(Capture which) {
      statements
    }
Parameters |
statements | any valid statements
which | the camera with the event
Related | Capture

Updated on July 4, 2018 11:56:47am EDT