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In Qt Application code Class A has one member method like method1(). I want to call this method in another member function method2() and run mehtod1() in a different thread. But what I found from the qt documentation is follows.
class MyThread(suppose) from QThread.run() with your required code.MyThread in Class A and then call the run function wherever you want.But the above seems bit complex. Is there any mechanism in Qt so that I can create a new QThread(without inheriting) instantly in my method1() and run the method2() with this thread and then return to method1() after execution finishes?
Please let me know if I am not clear in my question.
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There are two main ways of running code in a separate thread using QThread: subclassing QThread and overriding run(); creating a “worker object” (some QObject subclass) and connecting it to QThread signals.
Qt makes it easy to write multithreaded applications. Signals and slots can be used to safely communicate between threads in your application. The QtConcurrent namespace includes a collection of classes and functions for straightforward concurrent programming.
QFuture provides a Java-style iterator (QFutureIterator) and an STL-style iterator (QFuture::const_iterator). Using these iterators is another way to access results in the future. QFuture also offers ways to interact with a running computation. For instance, the computation can be canceled with the cancel() function.
A QThread object manages one thread of control within the program. QThreads begin executing in run(). By default, run() starts the event loop by calling exec() and runs a Qt event loop inside the thread. You can use worker objects by moving them to the thread using QObject::moveToThread().
Yes there is a way like you want.
This article will help you to understand why it's not the correct way to inherit from QThread: https://www.qt.io/blog/2010/06/17/youre-doing-it-wrong
This article will help you to know how use QThread in a real simple way: https://www.qt.io/blog/2006/12/04/threading-without-the-headache
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