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

[Henry Skoglund]

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=newQNetworkAccessManager();
> deleteinet;
> QApplicationapp(argc,argv);
> this works.
> QApplicationapp(argc,argv);
>     QNetworkAccessManager*inet=newQNetworkAccessManager();
> deleteinet;
> 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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