[Qt-interest] QProcess and Vista

[Willy P]

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
>>> >
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