IAMTimelineTransable::GetTransAtTime 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 GetTransAtTime method retrieves the transition nearest to the specified time, according to the specified boundary conditions.

Syntax

HRESULT GetTransAtTime(
  [out] IAMTimelineObj **ppObj,
        REFERENCE_TIME Time,
        long           SearchDirection
);

Parameters

ppObj [out]

Receives a pointer to the transition's IAMTimelineObj interface.

Time

Time from which to begin the search, in 100-nanosecond units.

SearchDirection

Member of the DEXTERF_TRACK_SEARCH_FLAGS enumerated type that specifies the boundary conditions for the search.

Return value

Returns one of the following HRESULT values:

Return code	Description
S_FALSE	No transition was found.
S_OK	Transition was found.
E_INVALIDARG	Invalid argument.
E_POINTER	NULL pointer argument.

 

Remarks

If the method returns S_OK, 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

IAMTimelineTransable Interface

Error and Success Codes