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The IAMTimelineEffect interface provides methods for manipulating audio and video effects in DirectShow Editing Services (DES). |
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IAMTimelineEffect interface (Qedit.h) |
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4/26/2023 |
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[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 IAMTimelineEffect interface provides methods for manipulating audio and video effects in DirectShow Editing Services (DES). An effect can be added to any timeline object that exposes the IAMTimelineEffectable interface. To set properties on an effect, use the IPropertySetter interface.
The DES effect object is actually a wrapper for one of two other objects:
- For audio effects, any DirectShow audio effect filter.
- For video effects, and 1-input DirectX Transform object.
Microsoft no longer supports the development of third-party DirectX Transform objects.
To specify the filter or DirectX Transform object for an effect, call the IAMTimelineObj::SetSubObjectGUID method.
To create an effect object, call IAMTimeline::CreateEmptyNode with the value TIMELINE_MAJOR_TYPE_EFFECT. You can query the returned IAMTimelineObj pointer for the IAMTimelineEffect interface.
The IAMTimelineEffect interface inherits from the IUnknown interface. IAMTimelineEffect also has these types of members:
The IAMTimelineEffect interface has these methods.
| Method | Description |
|---|---|
| EffectGetPriority | Retrieves the effect's priority level. |
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.
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