Display progress on another thread

[radu_d]

I want to make a custom dialog for displaying the progress of an operation. The operation is made on another thread which is not the UI thread. I cannot create the widget on that thread because QT does not allow that. If I create the widget on the UI thread and I update it from the worker thread I get a crash. Do you know a good approach to this problem? I am pretty new to Qt.

Thank you.

[nile.one]

please, provide some code on this and details on crash?

note that you should use signal-slots connections with Qt::QueuedConnection through different threads, for example


connect(workThreadObject, SIGNAL(somethingChanged()), progressDialog, SLOT(getSomethingChanged()), Qt::QueuedConnection);