## CPosPassThru Helper Function

The CPosPassThru helper function creates a plug-in distributor (a CPosPassThru COM object) that supports IMediaSeeking and IMediaPosition.

Function | Description
CreatePosPassThru | Creates a CPosPassThru COM object.

###

CreatePosPassThru

CPosPassThru Helper Function

Creates a COM object that supports IMediaSeeking and IMediaPosition for single-input pin renderers and transform filters.

STDAPI CreatePosPassThru(
LPUNKNOWN pAgg,
BOOL bRenderer,
IPin *pPin,
IUnknown **ppPassThru
);

##### Parameters

pAgg
  NULL if the object is not being created as part of an aggregate; otherwise, a pointer to the aggregate object's IUnknown interface (the controlling IUnknown).
bRenderer
  TRUE if the filter supports rendering; otherwise, FALSE.
pPin
  Pointer to the filter's input pin.
ppPassThru
  ISeekingPassThru interface.

##### Return Values

Returns S_OK if successful; otherwise, returns an HRESULT indicating the error.

##### Remarks

You can use this function to create a CPosPassThru object in Quartz.dll rather than from your own .dll file. The CLSID of the object is CLSID_SeekingPassThru.

© 1997 Microsoft Corporation. All rights reserved. Terms of Use.