CPullPin::DecideAllocator (Windows CE 5.0)
Negotiates an allocator to use with the asynchronous reader.
virtual HRESULT DecideAllocator(ImemAllocator* pAlloc,ALLOCATOR_PROPERTIES* pProps);
Parameters
- pAlloc
Allocator to propose as the preferred allocator (optional). Pass NULL if you are not proposing an allocator. - pProps
Size, count, and alignment of the allocator (optional). Pass zero if not requesting the allocator properties.
Return Values
Returns S_OK if successful, VFW_E_BADALIGN if eProps contains an invalid alignment property, E_OUTOFMEMORY if there is not enough memory available to create an allocator, and E_NOINTERFACE if the created IMemAllocator interface is invalid.
Remarks
This member function calls the IAsyncReader::RequestAllocator method to negotiate an allocator.
Requirements
DirectShow applications and DirectShow filters have different include file and link library requirements.
For more information, see Setting Up the Build Environment.
OS Versions: Windows CE 2.12 and later. Version 2.12 requires DXPAK 1.0 or later.
Header:
Send Feedback on this topic to the authors