CTransInPlaceInputPin::NotifyAllocator

A version of this page is also available for

Windows Embedded CE 6.0 R3

4/8/2010

Receives notification of which allocator will be used by the connected output pin.

Syntax

HRESULT NotifyAllocator(
  IMemAllocator* pAllocator,
  BOOL bReadOnly 
);

Parameters

• pAllocator
  Pointer to the IMemAllocator object to use.

  This might or might not be the same CTransInPlaceInputPin object that the input pin provided in the CTransInPlaceInputPin::GetAllocator member function (the output pin could provide its own allocator).

• bReadOnly
  Flag to indicate if the samples from this allocator are read-only.

Return Value

Returns NOERROR if successful.

Returns E_POINTER if the pointer is invalid.

Otherwise, returns an error due to calling CTransInPlaceOutputPin::ReceiveAllocator.

Remarks

This member function overrides the CBaseInputPin::NotifyAllocator member function and implements the IMemInputPin::NotifyAllocator method.

This member function remembers the allocator and passes it to the output pin because they both must share the same allocator.

Requirements