Warning when cancel download file?

[madawg]

QCoreApplication::postEvent: Unexpected null receiver

QCoreApplication::postEvent: Unexpected null receiver

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I don't know call what.
I make a downloader into a app, when I cancel download, I waning on console.
I don't know how to debug with problem.

[d_stranz]

Well, with all the detailed information you have provided, I think the correct answer is that your program has a bug in it. If you find the bug and fix it, the warning should go away.

[madawg]

QNetworkReply *reply = QNetAccessMananger::get(request);
....
if (reply != nullptr)
{
reply->disconnect();
reply->abort();
reply->deleteLater();
reply = nullptr;
}

I used above code to stop download file.

[d_stranz]

That's very useful. What's "reply"? A pointer to something which you don't consider important enough to identify.

Come on. If you want help to try to solve your problem, you have to provide some information that actually tells us something about what you are doing. Otherwise, you're just wasting your time and ours. We don't have a copy of your code sitting on our desk. So how are we supposed to understand from 4 lines of meaningless code what you might be doing right or wrong?

[madawg]

I updated it:

QNetworkReply *reply = QNetAccessMananger::get(request);

[ado130]

I am afraid the get function is not static, so thus you will probably need something like this:

QNetworkAccessManager *manager = new QNetworkAccessManager(this);
QNetworkReply *reply = manager->get(request);

QNetworkAccessManager *manager = new QNetworkAccessManager(this);
QNetworkReply *reply = manager->get(request);

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http://doc.qt.io/qt-4.8/qnetworkaccessmanager.html#details

[madawg]

sorry. It is not static, I only show it as detail more.