Someone want to join the OpenRcon project?

[halvors]

Hi!

Someone eant to join my opensource project OpenRcon?

http://sourceforge.net/projects/openrcon/

Halvor.

[Lykurg]

The forum "Qt-based Software" would have been a more suitable place for your query but anyway. I was curious how your code would look like, so I looked into it and must tell you that that kind of function is not a good idea:

void MainWindow::on_actionAbout_triggered()
{
    menuHelp_About = new AboutDialog;
    menuHelp_About->show();
}

void MainWindow::on_actionAbout_triggered()
{
    menuHelp_About = new AboutDialog;
    menuHelp_About->show();
}

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Why? Everytime this slot is called you create a new AboutDialog without deleting the old one. Result your application will block more and more memory. So you maybe better use

void MainWindow::on_actionAbout_triggered()
{
    if (0 == menuHelp_About)
      menuHelp_About = new AboutDialog;
    menuHelp_About->show();
}

void MainWindow::on_actionAbout_triggered()
{
    if (0 == menuHelp_About)
      menuHelp_About = new AboutDialog;
    menuHelp_About->show();
}

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[halvors]

When i tryd this it got my application crashed! So what sould i do to get it work?

[Lykurg]

well, you must of course initialize menuHelp_About first. So your c-tor have to look like:

MainWindow::MainWindow(/*...*/) : QMainWindow(/*...*/), menuHelp_About(0)
{
  //...
}

MainWindow::MainWindow(/*...*/) : QMainWindow(/*...*/), menuHelp_About(0)
{
  //...
}

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or

MainWindow::MainWindow(/*...*/) : QMainWindow(/*...*/)
{
  menuHelp_About = 0;
  //...
}

MainWindow::MainWindow(/*...*/) : QMainWindow(/*...*/)
{
  menuHelp_About = 0;
  //...
}

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