CPosPassThru.QueryPreferredFormat method
[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
The QueryPreferredFormat method retrieves the preferred time format for the stream. This method implements the IMediaSeeking::QueryPreferredFormat method.
Syntax
HRESULT QueryPreferredFormat(
GUID *pFormat
);
Parameters
-
pFormat
-
Pointer to a variable that receives a time format GUID.
Return value
Returns the HRESULT value from the connected pin.
Requirements
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| Library |
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