Re: AudioHardwarePlugIn and kAudioDevicePropertyDataSourceNameForID
Re: AudioHardwarePlugIn and kAudioDevicePropertyDataSourceNameForID
- Subject: Re: AudioHardwarePlugIn and kAudioDevicePropertyDataSourceNameForID
- From: Jeff Moore <email@hidden>
- Date: Wed, 3 Nov 2004 11:46:35 -0800
If the mOutputData field is NULL or the mOutputDataSize field is 0, it
is an error by the caller of AudioDeviceGetProperty() and you should
return kAudioHardwareIllegalOperationError.
If mOutputData is not NULL but mOutputDataSize is smaller than the
string you want to return, you should truncate the string to fit in the
provided buffer.
On Nov 3, 2004, at 5:18 AM, Dirk Musfeldt wrote:
Hi all,
I'm doing an AudioHardwarePlugIn and have troubles to get my reaction
on
kAudioDevicePropertyDataSourceNameForID right.
I get an AudioValueTranslation record and want to copy my C string
into the
buffer provided with the mOutputData field.
strcpy((char*)translation->mOutputData,nameString);
But what if mOutputData and mOutputData Size are null? Do I have to
malloc a
buffer myself?
Regards
Dirk
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--
Jeff Moore
Core Audio
Apple
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