OK- so when the user presses the space bar, you want a given program to receive a ctrl+c and then a?

well, detecting space bar is easy, but then that given program has to have focus...
but I know how to send ctrl+c and then a-

the Robot Class should be helpful...
basically it manipulates user input from the mouse and keyboard...

you want
keypress(int key);
or a keycode like CTRL (which happens to be the one that you want) or SHIFT etc.
for c and a, just 'c' and 'a' should work

you may want to read a bit more, though- there could be something that works better...

and be forewarned that using the robot class you risk getting stuck in an impossible-to-get-out-of-loop which I have been in before- trust me, it is not fun

PS I think you have to do import java.awt.robot* or something, I am not entirely sure...



OH, yes... some code example of the robot mouseMove();
PRESS ESC TO EXIT

1. import java.awt.Robot;
   import java.awt.AWTException;
   import java.awt.event.InputEvent;
   
   int xx = 10, yy = 10;
   Robot robby;
   
   void setup()
   {
     size(500, 500);
     try
     {
       robby = new Robot();
     }
     catch (AWTException e)
     {
       println("Robot class not supported by your system!");
       exit();
     }
   }
   
   void draw()
   {
     xx = (xx + 2) % width;
     yy = (yy + 2) % height;
    
     // Might need to confine to sketch's window...
     robby.mouseMove(xx, yy);
   } 

I hope this helped

Yes, it is possible.
Look at the keyPressed() function, for example.