Qt Assistant setSource doesn't work

[Maxim Skvortsov]

Hi. I am using Qt Assistant as help viewer with custom help project file. And before i ran into a problem https://forum.qt.io/topic/94973/project-hangs-on-qprocess-start-when-starting-qtassistant it worked fine. Now i resolved the problem, but when i trying to use setSource command through the QProcess::write as described in manual, it doesnt work. The code is:

    proc->start(app,args);
    if (!proc->waitForStarted()) {
        emit closed();
        return false;
    }

    QByteArray ba;
    ba.append("setSource qthelp://my_project_help_namespace/doc/test.html\n");
    proc->write(ba);

Does QProcess::write emit bytesWritten signal? Maybe any ideas what can i try to do else?

[Maxim Skvortsov]

So the decision in my case is to do not use setSource with QProcess::write. I used -showUrl option and it worked. This option must be provided with other arguments.

[SGaist]

Hi,

What version of Qt are you using ?
On what platform ?

Did you check the standard output and standard error ?

[Maxim Skvortsov]

@SGaist I am using Qt 5.7 with gcc on linux. Signals QProcess::readyReadStandardError and QProcess::readyReadStandardOutput are connected to lambda, which is printing them using qDebug(). There are no errors or any output. Also i connected QProcess::bytesWritten the same way i am getting messages only when i am restarting assistant (close, wait for finished before code in topic). If i will close it using exit button, there is no message.

[SGaist]

What arguments are you passing to Assistant when starting it ?

[Maxim Skvortsov]

@SGaist
I am providing only collection file and -enableRemoteControl command to assistant

QStringList args;
args << QLatin1String("-collectionFile")
     << QLatin1String(QString(PATH_TO_HELP).toLatin1())
     << QLatin1String("-enableRemoteControl");

[SGaist]

Would it possible for you to provide a minimal compilable example with some sample documentation files you are trying to show to test ?

[Maxim Skvortsov]

@SGaist Here is a simple example project: https://drive.google.com/open?id=1O8JwjYYT-RRlPf0dHksYjwfCj8BmdHKq
You'll need to place doc folder from project to directory where you built the project.

[Maxim Skvortsov]

This post is deleted!

[Maxim Skvortsov]

So the decision in my case is to do not use setSource with QProcess::write. I used -showUrl option and it worked. This option must be provided with other arguments.