[Qt-interest] Qt Assistant in god-mode? (Simple Text Viewer Example)

[BRM]

Your code snippet does not have any error checking other than if the process 
failed to start.
In this case, it succeeded in starting but didn't have a valid file to load; 
thereby your app worked as designed but not as expected.

Ben



----- Original Message ----
> From: "slayer81 at gmx.de" <slayer81 at gmx.de>
> To: qt-interest at trolltech.com
> Sent: Tue, March 22, 2011 12:37:05 PM
> Subject: [Qt-interest] Qt Assistant in god-mode? (Simple Text Viewer Example)
> 
> Hello Qt people :)
> 
> I adapted the SimpleTextViewer example, where a help  file collection is 
>started by spawning a QProcess running Qt Assistant.
> Link: http://doc.qt.nokia.com/4.7-snapshot/help-simpletextviewer.html
> 
> When  passing a non-existent help file as argument to Qt Assistant, it shows a 
>error  message, but QProcess does _not_ exit.
> 
> I wonder why that's the case,  because the following lines in application.cpp 
>(see commented code snippet) seem  to check that error, dont  they?
> 
> <<<<<<<<<<<<<<<<  application.cpp (bool  startAssistant)<<<<<<<<<<<<<<<<
>           QStringList args;
>          args  << QLatin1String("-collectionFile")
>               << QLibraryInfo::location(QLibraryInfo::ExamplesPath)
>               +  
>QLatin1String("/help/simpletextviewer/documentation/simpletextviewer.qhc")
>               <<  QLatin1String("-enableRemoteControl");
> 
>          /*  call with wrong collection file argument ... */
>           proc->start(app, args);
> 
>          /* ... and proc  will be in state QProcess::Running ... */
>          if  (!proc->waitForStarted()) {
>              /*  ... therefore you'll not see this message box (in this case) 
>*/
>               QMessageBox::critical(0, QObject::tr("Simple Text  Viewer"),
>                   QObject::tr("Unable to launch Qt Assistant (%1)").arg(app));
>               return false;
>           }
> <<<<<<<<<<<<<<<<
> 
> Doesnt  change when calling with option "quiet".
> I currently use Qt 4.6.3 on Windows  7.
> 
> Cheers,
> Paule
> -- 
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