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Exchange data between qt thread and c++ thread



  • Hi,

    Created Qt thread from c++ thread (not main thread and strand) and am ablne to pass the data through signal/slot to Qt thread. But, I could not pass data back from Qt thread to c++ thread. Any ideas?

    thanks.
    av.



  • Hi,
    To utilize the signal/slot the classes MUST be subclass of QObject. Without it, it will not work. The Qthread you made is probably lucky that the C++ is his parent, so it will connect to that, but giving data back means that the C++ thread should have an QObject part running, which it doesn't so it will not handle the events.


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