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Determines the size, number, and alignment of blocks.
HRESULT SetProperties( ALLOCATOR_PROPERTIES * pRequest , ALLOCATOR_PROPERTIES * pActual );
Returns an HRESULTvalue.
The pRequestparameter is filled in by the caller with the requested values for the count, number, and alignment as specified by the ALLOCATOR_PROPERTIESstructure. The pActualparameter 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::Decommitmethod.
The values of data members m_lSize, m_lCount, m_lAlignment, and m_lPrefixare set to the corresponding members of the pActualparameter's ALLOCATOR_PROPERTIESstructure.