IAMTimelineTrans::SetSwapInputs 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 SetSwapInputs method specifies whether the transition inputs are swapped.

By default, a transition goes from the composite of all lower-priority layers to the layer where the transition resides. You can reverse this progression, so the transition goes from the layer where it resides back to the composite of lower-priority layers. For more information, see Transition Direction.

Syntax

HRESULT SetSwapInputs(
   BOOL Val
);

Parameters

Val

Specifies whether the inputs are swapped. If FALSE, the transition goes from the composite of all lower-priority layers to the transition layer. If TRUE, the transition goes in the opposite direction.

Return value

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Remarks

This method does not change the direction of the visual effect. For example, a left-to-right wipe will still go from left to right. To change the direction, set the Progress property using the IPropertySetter interface.

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

IAMTimelineTrans Interface

Error and Success Codes