Hi,

I have a program in which i create a new dialog. It doesn't happen every time i create that dialog, but when i close the dialog and create it again after enough attempts the program crashes.

I create the dialog from a mainwindow with the following code

Qt Code: 
  1. void MainWindow::newServer()
  2. {
  3.     serverScreen = new newServerScreen();
  4.     serverScreen->setParent(this);
  5.     serverScreen->setWindowFlags(Qt::Window);
  6.     serverScreen->setAttribute(Qt::WA_DeleteOnClose);
  7.     serverScreen->setAttribute(Qt::WA_ShowModal);
  8.     serverScreen->show();
  9. }
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the code of the dialog is as follows
newServerScreen.h:
Qt Code: 
  1. #ifndef NEWSERVERSCREEN_H
  2. #define NEWSERVERSCREEN_H
  3.  
  4. #include <QDialog>
  5. #include <QLineEdit>
  6. #include <QCheckBox>
  7. #include <QComboBox>
  8. #include <QLabel>
  9.  
  10. #include <server.h>
  11.  
  12. class newServerScreen : public QDialog
  13. {
  14. public:
  15.     newServerScreen();
  16.  
  17.     //Widgets
  18.     QLineEdit *Addres;
  19.     QLineEdit *Nickname;
  20.     QLineEdit *Username;
  21.     QLineEdit *Password;
  22.     QCheckBox *UseSsl;
  23.     QCheckBox *RequireLogin;
  24.     QComboBox *Connections;
  25.  
  26.     QLabel *labelAddres;
  27.     QLabel *labelNickname;
  28.     QLabel *labelUsername;
  29.     QLabel *labelPassword;
  30.     QLabel *labelConnections;
  31.  
  32. private:
  33.     void createInterface();
  34.     void createActions();
  35.  
  36.     Server *newServer;
  37. };
  38.  
  39. #endif // NEWSERVERSCREEN_H
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newServerScreen.cpp:
Qt Code: 
  1. #include "newserverscreen.h"
  2.  
  3. newServerScreen::newServerScreen()
  4. {
  5.     this->createActions();
  6.     this->createInterface();
  7. }
  8.  
  9. void newServerScreen::createActions()
  10. {
  11. }
  12.  
  13. void newServerScreen::createInterface()
  14. {
  15.     this->setWindowTitle(tr("Add new server"));
  16.     Addres = new QLineEdit();
  17.     Nickname = new QLineEdit();
  18.     Username = new QLineEdit();
  19.     Password = new QLineEdit();
  20.     UseSsl = new QCheckBox();
  21.     RequireLogin = new QCheckBox();
  22.     Connections = new QComboBox();
  23.     labelAddres = new QLabel();
  24.     labelNickname = new QLabel();
  25.     labelUsername = new QLabel();
  26.     labelPassword = new QLabel();
  27.     labelConnections = new QLabel();
  28. }
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When i comment out all the lines with new in them in the newServerScreen.cpp file the program doesn't crash.

Once i got the following output from the program in QtCreator:
Qt Code: 
  1. Starting O:/projects/Post_Program/debug/Post_Program.exe...
  2. ASSERT: "r->d_func()->postedEvents >= 0" in file kernel\qcoreapplication.cpp, line 1235
  3. Invalid parameter passed to C runtime function.
  4. Invalid parameter passed to C runtime function.
  5. QMutex::lock: Deadlock detected in thread 8976
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I don't know what i did different that time because i can't replicate it.

I program in QtCreator 1.1.0 with Qt 4.5.1 on a Windows 7 RC 64bit


Thanks in advance