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IDirectSoundBuffer8::QueryInterface return value is E_NOINTERFACE
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E_NOINTERFACE@discussions.microsoft.com IDirectSoundBuffer8 E_NOINTERFACE
Aug 10, 2009, 10:33:01 AM8/10/09
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HRESULT hr=mybuf->QueryInterface(IID_IDirectSoundBuffer8,(LPVOID*)&ds8buffer);
here hr=E_NOINTERFACE.But I use IID_IDirectSoundBuffer instead of
IID_IDirectSoundBuffer8,hr=S_OK.
I setup DXSDK_Mar09.exe.The help Introduction tell me I can use
IID_IDirectSoundBuffer8 in my proglam,in fact it not to be.Why?
here hr=E_NOINTERFACE.But I use IID_IDirectSoundBuffer instead of
IID_IDirectSoundBuffer8,hr=S_OK.
I setup DXSDK_Mar09.exe.The help Introduction tell me I can use
IID_IDirectSoundBuffer8 in my proglam,in fact it not to be.Why?
Chris P.
Aug 11, 2009, 9:56:50 AM8/11/09
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Are you doing this on a primary buffer or a secondary buffer?
IDirectSoundBuffer8 is not available on a primary buffer.
--
http://www.chrisnet.net/code.htm
[MS MVP for DirectShow / MediaFoundation]
cgq130
Aug 11, 2009, 10:13:02 AM8/11/09
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"Chris P." wrote:
> Thank you! I'm done this on a primary buffer.Thank you for your help!
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