QObject: Cannot create children for a parent that is in a different thread

http://stackoverflow.com/questions/3268073/qobject-cannot-create-children-for-a-parent-that-is-in-a-different-thread

The run() member function is executed in a different thread, rather than the thread where QNetworkRequestManager object was created.

This kind of different-thread problems happen all the time with Qt when you use multiple threads. The canonical way to solve this problem is to use signals and slots.

Create a slot in the object where QNetworkRequestManager belongs to, create a signal in ResultThread and connect both of the somewhere, the constructor of ResultThread would be a good place.

The code which is currently in ResultThread::run() goes to the new slot, and is replaced by a emit(yourSignal()). If neccessary send a pointer to your ResultThread as a parameter with your emit function to gain access to member funtions/variables.