CTransInPlaceInputPin::GetAllocatorRequirements
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4/8/2010
Passes requests for allocator requirements downstream.
Syntax
HRESULT GetAllocatorRequirements(
ALLOCATOR_PROPERTIES* pProps
);
Parameters
- pProps
ALLOCATOR_PROPERTIES structure containing the required size, count, and alignment of the allocator.
Return Value
Returns E_NOTIMPL if the filter's output pin is not connected. Otherwise, returns an HRESULT that indicates whether the allocator properties were successfully received.
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
This member function overrides the CBaseInputPin::GetAllocatorRequirements member function and implements the IMemInputPin::GetAllocatorRequirements method.
If the downstream input pin can supply allocator requirements, it does so.
Requirements
| Windows Embedded CE | Windows CE 2.12 and later |
| Note | Microsoft DirectShow applications and DirectShow filters have different include file and Library requirements For more information, see Setting Up the Build Environment, Version 2.12 requires DXPAK 1.0 or later |