IAMTimelineTransable interface
[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 IAMTimelineTransable interface adds transitions to an object in DirectShow Editing Services (DES). This interface is exposed by any object that can have transitions applied to it, including tracks, compositions, and groups. An object that implements this interface can have any number of transitions, but the transitions must not overlap in time.
Note
Audio does not support transitions. Objects within audio groups can expose the IAMTimelineTransable interface, but the application should not add transitions to them.
Members
The IAMTimelineTransable interface inherits from the IUnknown interface. IAMTimelineTransable also has these types of members:
Methods
The IAMTimelineTransable interface has these methods.
| Method | Description |
|---|---|
| GetNextTrans | Retrieves the first transition that appears at the specified time or later. |
| GetNextTrans2 | Retrieves the first transition that appears at the specified time or later, with the time given as a REFTIME value. |
| GetTransAtTime | Retrieves the transition nearest to the specified time. |
| GetTransAtTime2 | Retrieves the transition nearest to the specified time, given as a REFTIME value. |
| TransAdd | Adds a transition to the object. |
| TransGetCount | Retrieves the number of transitions on this object. |
Remarks
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 |
|
| Library |
|