Slot in main thread (gui), signal from background thread - how?

[giaur]

This doesn't work:

Thread thread;
connect(&thread, SIGNAL(counterValueChanged(int)), ...);
thread.start();
thread.moveObjectsToThread();

Thread thread;
connect(&thread, SIGNAL(counterValueChanged(int)), ...);
thread.start();
thread.moveObjectsToThread();

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No signals emiited at all and iwarning in console is:

QThread: Destroyed while thread is still running

But this works fine:

Thread *thread;
connect(thread, SIGNAL(counterValueChanged(int)), ...);
thread->start();
thread->moveObjectsToThread();

Thread *thread;
connect(thread, SIGNAL(counterValueChanged(int)), ...);
thread->start();
thread->moveObjectsToThread();

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Thread is created and started in main window constructor. In the first case - QThread object is destroyed without stopping thread. So, the thread works, but without any control ("Ping" commands are printed as weel). Why?