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IMFDXGIBuffer::GetUnknown method
Gets an IUnknown pointer that was previously stored in the media buffer object.
Syntax
HRESULT GetUnknown( [in] REFIID guid, [in] REFIID riid, [out] LPVOID *ppvObject );
Parameters
- guid [in]
-
The identifier of the IUnknown pointer.
- riid [in]
-
The interface identifer (IID) of the interface being requested.
- ppvObject [out]
-
Receives a pointer to the interface. The caller must release the interface.
Return value
This method can return one of these values.
| Return code | Description |
|---|---|
|
Success. |
|
The object does not support the specified interface. |
|
The specified key was not found. |
Requirements
|
Minimum supported client |
Windows 8 [desktop apps | Windows Store apps] |
|---|---|
|
Minimum supported server |
Windows Server 2012 [desktop apps | Windows Store apps] |
|
Header |
|
See also
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