gui and fork()

[msh]

Hello!

I've got some problem with fork(). My code:

void Form1::pq_listening() {
pid_t ppid;
ppid=fork();
 
switch (ppid)
 
  { case -1: 
	ui.textEdit->append("error"); break;
 
    case 0: 
            ui.textEdit->append("fork"); break;
 
 
    default: 
	ui.textEdit->append("parent"); break;
  }
}

void Form1::pq_listening() {
pid_t ppid;
ppid=fork();

switch (ppid)

  { case -1: 
	ui.textEdit->append("error"); break;

    case 0: 
            ui.textEdit->append("fork"); break;


    default: 
	ui.textEdit->append("parent"); break;
  }
}

To copy to clipboard, switch view to plain text mode 

after it, in textEdit I have only "parent". What should I do with it?