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IAMDevMemoryControl::GetDevId

  • Article
 
Microsoft DirectShow 9.0

IAMDevMemoryControl::GetDevId

  • Note   The IAMDevMemoryControl interface is deprecated.

Retrieves the device ID of the on-board memory allocator.

Syntax

  HRESULT GetDevId(
  DWORD *pdwDevId
);

Parameters

pdwDevId

[out] Pointer to the device ID.

Return Value

Returns an HRESULT value that depends on the implementation of the interface.

Remarks

This method retrieves a unique ID that the hardware filter can use to verify that the specified allocator passed uses its on-board memory (because there can be more than one). The ID will be the same one as used to create the allocator object (using CoCreateInstance). For another filter to be able to use the on-board memory, it must have the same device ID as the on-board memory allocator.

Requirements

Reference: Dshow.h.

Library: Quartz.dll.

See Also