How to execute a function without hanging the main form in qt?

Question

Qt

hello, help me figure this out: there is some kind of function (for example, downloading a file from the network or searching on a computer). How to execute such a function in another thread without hanging the main form? (like Dispatcher.BeginInvoke in C#) and with the ability to stop/restart?

Answer 1

Take and deal with QThread. To stop / start, use signals / slots (the meaning of QThread is that it can start its own eventLoop, and catch QueuedConnection signals from other threads)

Answer 2

As elsewhere - by executing the GUI in a separate thread (well, or performing heavy calculations in a separate thread, as you like).

Answer 3

kuri cancarensi

Answer 4

QThread