hello,
I am not very good with processing and ı need urgent help for my final project. I am capturing with 2 logitech cams on a mac osx system and what I want is feed from cam 1 to switch to feed from cam 2 when I press the button b. I think my problem is about the part keyPressed() but I can't find a solution. the code was working until 10 min ago with two webcams aptuing and also now, all I get is a grey screen. any help??

my code is this:

import processing.video.*;



Capture myCapture;
Capture myCapture2;
String[] captureDevices;


void setup()
{
 size( 600, 800 );
 println (Capture.list());
 captureDevices = Capture.list();
 
 myCapture = new Capture(this, width, height, 30);
 myCapture.settings();  
 
 myCapture2 = new Capture(this, width, height, 30);
 myCapture2.settings();

}

void draw() {
  if(keyPressed) {
   if (key == 'b' || key == 'B') {

 
    image(myCapture, 200, 200);
 
        }else{
 

image(myCapture2, 200, 200);
 }
}

}