CPosPassThru::QueryPreferredFormat
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4/8/2010
Retrieves the preferred time format to be used by the interface.
Syntax
HRESULT QueryPreferredFormat(
GUID* pFormat
);
Parameters
- pFormat
Time format preferred by the interface.
Return Value
Returns the HRESULT value returned from calling IMediaSeeking::QueryPreferredFormat on the connected pin.
Remarks
This member function implements the IMediaSeeking::QueryPreferredFormat method by calling this same method on the upstream filter's output pin.
See the description for IMediaSeeking::IsFormatSupported for a list of available time formats. If the time format returned is not satisfactory, use the IMediaSeeking::IsFormatSupported method to query for supported time formats that you can use.
Requirements
| 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 |