Hi Stefan,
check out the excellent QThread API docs for the correct patterns for
interacting between UI and worker threads.
I don't think that it really matters which thread is your "main" thread. Surely
you have to call Q*Application::exec()
in one distinct thread and you definitely can have only one thread of this type
running at the same time.
--
Frank Mertens
On 3/27/23 22:23, Stefan Seefeld wrote:
Hello,
I'm working on some Python tests that interact with a Qt application. I would
like to run the application's event loop in a secondary thread, so the primary
thread can perform the test itself.
I read in the past that such a use-case wasn't supported by Qt, but I can't
find that information right now, and neither do I remember the rationale for
that limitation.
Could anybody please either confirm or deny this limitation, ideally with some
background information ?
For context: my application is somewhat atypical in that the application only
has a minimal GUI, but does a lot of processing of input from TCP/IP.
The test logic I'd like to write would thus have test function (running in the
primary thread) control the data sent to the app and inspect and assert the
application's corresponding states, while the event processing would take place
in a secondary thread.
I'm unfortunately not sure that such a use-case is possible at all, i.e. I may have to
invert roles, i.e. have the actual "test scenario" be executed in a secondary
thread as the main thread is reserved for the (blocking) event loop.
Thanks for any information & suggestions !
...ich hab' noch einen Koffer in Berlin...
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