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IMemAllocator::SetProperties (Compact 2013)

  • Article

3/26/2014

This method specifies the size, number, and alignment of blocks.

Syntax

HRESULT SetProperties(
  ALLOCATOR_PROPERTIES* pRequest,
  ALLOCATOR_PROPERTIES* pActual
);

Parameters

  • pRequest
    [in] Requested allocator properties.
  • pActual
    [out] Allocator properties actually set.

Return Value

Returns an HRESULT value that depends on the implementation.

HRESULT can be one of the following standard constants, or other values not listed.

Value

Description

E_FAIL

Failure.

E_POINTER

Null pointer argument.

E_INVALIDARG

Invalid argument.

E_NOTIMPL

Method is not supported.

S_OK or NOERROR

Success.

Remarks

The pRequest parameter is filled in by the caller with the requested values for the count, number, and alignment as specified by the ALLOCATOR_PROPERTIES structure.

The pActual parameter is filled in by the allocator with the closest values that it can provide for the request.

This method cannot be called unless the allocator has been decommitted using the IMemAllocator::Decommit method.

This method assumes that blocks are all the same size.

Requirements

Header

dshow.h

Library

Strmiids.lib

See Also

Reference

IMemAllocator Interface