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Retrieves the preferred time format to be used by the interface.


HRESULT QueryPreferredFormat(



Time format preferred by the interface.

Return Value

Returns the HRESULTvalue returned from calling IMediaSeeking::QueryPreferredFormaton the connected pin.


This member function implements the IMediaSeeking::QueryPreferredFormatmethod by calling this same method on the upstream filter's output pin.

See the description for IMediaSeeking::IsFormatSupportedfor a list of available time formats. If the time format returned is not satisfactory, use the IMediaSeeking::IsFormatSupportedmethod to query for supported time formats that you can use.


Windows Embedded CE Windows CE 2.12 and later
Windows Mobile Windows Mobile Version 5.0 and later
Note Microsoft DirectShow applications and DirectShow filters have different include file and Library requirements
For more information, see Setting Up the Build Environment,
Version 2.12 requires DXPAK 1.0 or later