QThread and the hell

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neosengla

Beginner

Posts: 17

Sunday, August 23rd 2009, 7:22pm

QThread and the hell

So... i'm doing a Thread through Qthread

before Exec(), i need to do some previous IP TCP checks to some locations. I use my Run() function (that ends with the exec()) to do those previous checks. The problem is that i want to give the user the chance to go one way or another depending on the results of those checks.

So, inside my Run function i tried to call a QMessageBox, but the program crashes every time it has to open something related to QWidget from a QThread function related.

Any ideas why? Any ideas to know how to do what i'd like?

thanks

Edit: code

Source code

void doitThread::run()  {
 //Try to connect to someone first
socket = new QTcpSocket();
 int i = 0;
 while (socket->state()!=QAbstractSocket::ConnectedState && i<clients->count()){
   fb->lineEdit("Prova de connexió amb "+clients->at(i));
   socket->connectToHost(QHostAddress(clients->at(i)), 6999);
   socket->waitForConnected(1000);
   i++;
 }
 if (socket->state()!=QAbstractSocket::ConnectedState){  //id like to let the user decide what to do if i haven't been able to connect to anyone
  bool decide=false;
   askServer * ask = new askServer(parent, &decide);   //This is similar to a message box class, click ok or cancel, and the result is saved in the bool parametre

   ask.exec();
 if (decide==false){
   socket->close();
   this->exit(0);   
}
 } 
          exec(); 
 }

This post has been edited 5 times, last edit by "neosengla" (Aug 23rd 2009, 7:33pm)