Microsoft DirectX 9.0

IMemInputPin::GetAllocatorRequirements

The GetAllocatorRequirements method retrieves the allocator properties requested by the input pin.

Syntax

HRESULT GetAllocatorRequirements(
  ALLOCATOR_PROPERTIES *pProps
);

Parameters

pProps

[in] Pointer to an ALLOCATOR_PROPERTIES, structure which is filled in with the requirements.

Return Value

Returns an HRESULT value. Possible values include those shown in the following table.

Value Description
S_OK Success
E_NOTIMPL Not implemented
E_POINTER NULL pointer argument

Remarks

When an output pin initializes a memory allocator, it can call this method to determine whether the input pin has any buffer requirements. The input pin is not required to implement this method. If the filter has specific alignment or prefix requirements, it should implement this method.

See Also