IDirectDrawMediaSampleAllocator interface

The IDirectDrawMediaSampleAllocator interface allocates samples that contain DirectDraw surfaces.

The Overlay Mixer filter's input pin creates an allocator that implements this interface. This allocator allocates IDirectDrawMediaSample media samples that also support the IMediaSample interface.

Decoder filters should not have to use this interface to connect to the Overlay Mixer. Applications never use this interface.

Members

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

Methods

The IDirectDrawMediaSampleAllocator interface has these methods.

MethodDescription
GetDirectDraw

Retrieves the DirectDraw instance used to allocate surfaces.

 

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Amstream.h

Library

Strmiids.lib

 

 

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