why do I get an error "KGlobal::locale() must be called from the main thread..."?

Hi,
I'm building an application with the intention that its cross-platform. I have tried to not use any system-specific code, although I'm developing on Linux.
I have run into the following problem when moving some code that worked perfectly before, when in the main thread, into a separate thread.
When executing, the application aborts after the following message:

KGlobal::locale() must be called from the main thread before using i18n() in threads. KApplication takes care of this. If not using KApplication, call KGlobal::locale() during initialization.
Aborted

I'm surprised that I'm getting an error which seems to be KDE-related. Is there any way I can fix this without KDE-specific code?

The line that makes this error appear is the following:

Code:

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audio = new Phonon::AudioOutput(Phonon::MusicCategory);

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Thanks in advance.

Can Phonon be used in worker threads at all?

Hmm I didn't think that would be a problem, I cannot find anything in the documentation that suggests it shouldn't be possible?

My idea is to create a phonon audio player class that runs on its own thread. My main application would then be capable of starting 2 independent players to be able to crossfade between them, mixing the output sound.

Is this not possible, or is there a better way to do this?

Thanks,
Derek

Quote:

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Originally Posted by derektmm

Hmm I didn't think that would be a problem, I cannot find anything in the documentation that suggests it shouldn't be possible?

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Does anything suggest it is possible? In general things that access multimedia usually don't work well with multiple threads although I have no idea if this is the case. I think you should ask on some KDE forum (Phonon originates in KDE).