[Interest] Crash when creating QNetworkAccessManager in qt 5.14.x

[maitai]

Good idea, and I just tried. Unfortunately it still crashes...

Philippe.

Le 06-02-2020 11:21, Henry Skoglund a écrit :
> Hi, also since constructing a QNetworkAccessManager() does a
> CoInitialize(nullptr), have you tried doing a CoUninitialize() just
> before, e.g;
> ...
> QApplication app(argc, argv);
> CoUninitialize();
> QNetworkAccessManager *inet = new QNetworkAccessManager();
> delete inet;
> ...
> 
> On 2020-02-06 08:02, coroberti . wrote:
>> Have you tried to comment out cleanup of reply objects (QNetworkReply) 
>> ?
>> 
>> 
>> On Thu, Feb 6, 2020 at 8:49 AM maitai <maitai at virtual-winds.org> 
>> wrote:
>>> I've checked it already, and anyway a QFileDialog is a QWidget and as 
>>> such cannot be created before QApplication (that's what it said when 
>>> I tried).
>>> 
>>> Philippe
>>> 
>>> 
>>> 
>>> 
>>> Le 05-02-2020 21:20, Henry Skoglund a écrit :
>>> 
>>> Hi, maybe you already checked this, but if you have any big wheels 
>>> like a QFileDialog declared static, their ctors most likely will run 
>>> before main(), i.e. some COM/networking activity could occur before 
>>> main() kicks in.
>>> 
>>> On 2020-02-05 21:10, maitai wrote:
>>> 
>>> As I said, I now have doubts it comes from COM threading...
>>> 
>>> I have built a small app with nothing inside, with the same .pro file 
>>> exactly (qt modules, libs, etc, in the same order). The only 
>>> difference is HEADERS and SOURCES of course, main.cpp being the same 
>>> at least until it crashes. No problem in this small app (running in 
>>> the same directory).
>>> 
>>> Again for those who missed it:
>>> 
>>> main.cpp:
>>> 
>>>      QNetworkAccessManager *inet = new QNetworkAccessManager();
>>> 
>>>      delete inet;
>>> 
>>>      QApplication app(argc, argv);
>>> 
>>> this works.
>>> 
>>>     QApplication app(argc, argv);
>>> 
>>>     QNetworkAccessManager *inet = new QNetworkAccessManager();
>>> 
>>>      delete inet;
>>> 
>>> this crashes on new in our app, not in a sample without HEADERS and 
>>> SOURCES.
>>> 
>>> I cannot understand that, certainly there is something obvious I am 
>>> missing.
>>> 
>>> Philippe Lelong.
>>> 
>>> 
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