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IVMRSurface interface

The IVMRSurface interface is implemented on the media samples used by the Video Mixing Renderer Filter 7 (VMR-7). Filters can use this interface to access the underlying DirectDraw surface on which the media sample is based. Filters must always lock and unlock the surface using the methods available on this interface. Filters must never call lock or unlock directly on the DirectDraw surface interface returned from the GetSurface method. Applications do not use this interface.

Members

The IVMRSurface interface inherits from the IUnknown interface. IVMRSurface also has these types of members:

Methods

The IVMRSurface interface has these methods.

MethodDescription
GetSurface

Retrieves the attached DirectDraw surface interface.

IsSurfaceLocked

Indicates whether the DirectDraw surface attached to this media sample is locked.

LockSurface

Locks the attached DirectDraw surface.

UnlockSurface

Unlocks the attached DirectDraw surface.

 

Requirements

Minimum supported client

Windows XP with SP1 [desktop apps only]

Minimum supported server

Windows Server 2003 [desktop apps only]

Header

Strmif.h (include Dshow.h)

Library

Strmiids.lib

See also

Using the Video Mixing Renderer

 

 

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