[Qt-interest] QProcess and Vista

Willy P willy.lists at gmail.com
Sat Feb 21 00:43:42 CET 2009


Also,
Here's my QProcess setup:

_ffmpeg.setProcessChannelMode(QProcess::MergedChannels);
_ffmpeg.setEnvironment( QProcess::systemEnvironment() += "." );

Thanks in advance...

-Willy
	

On Fri, Feb 20, 2009 at 3:38 PM, Willy P <willy.lists at gmail.com> wrote:
> I am desperate.  I have been at this for D-A-Y-S.
>
> I have a QProcess that kicks off ffmpeg w/ a bunch of parameters.  The
> code works fine on Linux, OS X and XP and it fails on Vista.  If I
> print the input to QProcess::start and then paste it onto cmd.exe it
> works.  So there is something wrong in the space between QProcess and
> ffmpeg.  QProcess has the correct working directory.  If anyone could
> tell me what I might be missing that would be great.
>
> #ifdef Q_OS_WIN32
>        args.push_front( "ffmpeg" );
>        args.push_front( "/C" );
>        qDebug() << "cmd.exe " + args.join( " " );
>        ErrorLog::write( "cmd.exe " + args.join( " " ) );
>        _ffmpeg.start( "cmd.exe", args );
> #else
>
> Thanks so much...
>
> -Willy
>
>
>
> On Sat, Feb 14, 2009 at 3:35 PM, Willy P <willy.lists at gmail.com> wrote:
>> Path is fine.  Permissions are fine.  I did my best to un-vista vista
>> (by that I mean I took steps to cut down on the warnings.)  Any more
>> specific advice on environment or security protocols?
>>
>>
>> On Sat, Feb 14, 2009 at 9:15 AM, Scott Aron Bloom
>> <Scott.Bloom at sabgroup.com> wrote:
>>> I have an application that is distrusted on Vista as well as XP...
>>>
>>> The same QProcess call, using QStringList works fine...
>>>
>>> Check your path, your environment, and your security protocols.
>>>
>>> Scott
>>>
>>>> -----Original Message-----
>>>> From: qt-interest-bounces at trolltech.com [mailto:qt-interest-
>>>> bounces at trolltech.com] On Behalf Of Willy P
>>>> Sent: Saturday, February 14, 2009 2:05 AM
>>>> To: Qt Interest
>>>> Subject: Re: [Qt-interest] QProcess and Vista
>>>>
>>>> Ok, I've made some progress.  It seems the problem is the args
>>>> QStringList does not work on Vista.
>>>>
>>>> If I run:
>>>>
>>>> QProcess p;
>>>> p.execute( "cmd.exe /C Notepad.exe" );
>>>>
>>>> It works fine on Vista.  Strikes me as a bug no?  Anyone else having
>>> this
>>>> issue?
>>>>
>>>> -Willy
>>>>
>>>>
>>>>
>>>> On Fri, Feb 13, 2009 at 5:05 PM, Willy P <willy.lists at gmail.com>
>>> wrote:
>>>> > Hey,
>>>> > Is there something special I have to do to get QProcess to run on
>>> Vista?
>>>> >
>>>> > QStringList args() << "/C" << "Notepad.exe";
>>>> > QProcess p;
>>>> > p.start( "cmd.exe", args );
>>>> >
>>>> > On XP this launches notepad, on Vista it gives me QProcess ErrorCode
>>> 0.
>>>> >
>>>> > -Using Qt 4.4.3 commercial
>>>> > -App is being built with visual studio 2005 on an XP machine
>>>> > -App is being installed on an up to date Vista Ultimate machine.
>>>> >
>>>> > Thanks in advance for any advice.
>>>> >
>>>> > -Willy
>>>> >
>>>> _______________________________________________
>>>> Qt-interest mailing list
>>>> Qt-interest at trolltech.com
>>>> http://lists.trolltech.com/mailman/listinfo/qt-interest
>>>
>>> _______________________________________________
>>> Qt-interest mailing list
>>> Qt-interest at trolltech.com
>>> http://lists.trolltech.com/mailman/listinfo/qt-interest
>>>
>>
>



More information about the Qt-interest-old mailing list