var button;

​

function setup() {

  createCanvas(800, 240);

  background(51);

  video = createCapture(VIDEO);

  video.size(320, 240);

  button = createButton("snap");

  button.mousePressed(takesnap);

}

​

function takesnap() {

image(video,0,0);

}

function draw() {

​

​

// image(video,0,0,mouseX,mouseY);

}

​