CSourceSeeking::QueryPreferredFormat
| Microsoft DirectShow 9.0 |
CSourceSeeking::QueryPreferredFormat
The QueryPreferredFormat method retrieves the object's preferred time format. This method implements the IMediaSeeking::QueryPreferredFormat method.
Syntax
HRESULT QueryPreferredFormat(
GUID *pFormat
);
Parameters
pFormat
Pointer to a variable that receives a time format GUID. See Time Format GUIDs.
Return Value
Returns one of the HRESULT values listed in the following table.
| Value | Description |
| S_OK | Success |
| E_POINTER | NULL pointer value |
Remarks
The only time format supported by the base class is TIME_FORMAT_MEDIA_TIME (100-nanosecond units).
Requirements
** Header:** Declared in Ctlutil.h; include Streams.h.
** Library:** Use Strmbase.lib (retail builds) or Strmbasd.lib (debug builds).
See Also