QDialog problem with exec()

[wysota]

Disconnect the lastWindowClosed() signal in the application object from its quit() slot.

[nomadscarecrow]

Disconnect the lastWindowClosed() signal in the application object from its quit() slot.

Thanks for the reply.

Before the tcontrol *control = new tcontrol(); line, I use this a.setQuitOnLastWindowClosed(false); as I check on documentation:

void QApplication::lastWindowClosed () [signal]
...
This feature can be turned off by setting quitOnLastWindowClosed to false.

but the result is the same.

[wysota]

Please provide a minimal compilable example reproducing the problem.