IAMTimelineComp::GetVTrack 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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.]

Note

[Deprecated. This API may be removed from future releases of Windows.]

 

The GetVTrack method retrieves the virtual track at the specified priority.

Syntax

HRESULT GetVTrack(
  [out] IAMTimelineObj **ppVirtualTrack,
        long           Which
);

Parameters

ppVirtualTrack [out]

Receives the virtual track's IAMTimelineObj interface.

Which

Priority of the virtual track to retrieve.

Return value

Returns one of the following HRESULT values:

Return code	Description
S_OK	Success.
E_INVALIDARG	No virtual track with the specified priority.
E_POINTER	NULL pointer argument.

 

Remarks

If the method succeeds, the IAMTimelineObj interface that it returns has an outstanding reference count. Be sure to release the interface when you are finished using it.

Note

The header file Qedit.h is not compatible with Direct3D headers later than version 7.

 

Note

To obtain Qedit.h, download the Microsoft Windows SDK Update for Windows Vista and .NET Framework 3.0. Qedit.h is not available in the Microsoft Windows SDK for Windows 7 and .NET Framework 3.5 Service Pack 1.

 

Requirements

Requirement	Value
Header	Qedit.h
Library	Strmiids.lib

See also

IAMTimelineComp Interface

Error and Success Codes