Here's the code (I'll put it in my Processing section later):

import processing.video.*;

Capture c;

PFont fonte;

boolean showFrameRate = false;

void setup() {
  size(320, 200);
  frame.setAlwaysOnTop(true);
  frame.setUndecorated(true);

  c = new Capture(this, 320, 200, 10);
  fonte = loadFont("ArialMT-24.vlw");
  textFont(fonte);
  //frameRate(10);
}


void draw() {
  c.read();

  image(c, 0, 0, width, height);
  if (showFrameRate) {
    fill(255, 0, 0);
    text(frameRate, 0, 24);
  }
}

void mouseDragged() {

  Point p = frame.getLocation();

  float x = p.x + mouseX-pmouseX;
  float y = p.y + mouseY-pmouseY;

  frame.setLocation((int)x, (int)y);
}

void keyPressed() {

  if (key == '1') {
    frame.setSize(320, 200);
  } 
  else if (key == '2') {
    frame.setSize(320, 240);
  } 
  else if (key == '3') {
    frame.setSize(400, 300);
  } 
  else if (key =='4') {
    frame.setSize(600, 400);
  } 
  else if (key == 'f') {
    showFrameRate = !showFrameRate;
  }
}