MFGetAttribute2UINT32asUINT64 function
Gets an attribute whose value is two UINT32 values packed into a UINT64.
Syntax
HRESULT MFGetAttribute2UINT32asUINT64( _In_ IMFAttributes *pAttributes, _In_ REFGUID guidKey, _Out_ UINT32 *punHigh32, _Out_ UINT32 *punLow32 );
Parameters
- pAttributes [in]
-
A pointer to the IMFAttributes interface of the attribute store.
- guidKey [in]
-
A GUID that identifies which value to retrieve. The attribute type must be MF_ATTRIBUTE_UINT64.
- punHigh32 [out]
-
Receives the high-order 32 bits.
- punLow32 [out]
-
Receives the low-order 32 bits.
Return value
The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.
| Return code | Description |
|---|---|
|
The method succeeded. |
|
The specified key was not found. |
|
The attribute value is not a UINT64. |
Remarks
Internally, this function calls IMFAttributes::GetUINT64 to get the UINT64 value, and Unpack2UINT32AsUINT64 to unpack the two 32-bit values.
Requirements
|
Minimum supported client |
Windows Vista [desktop apps | Windows Store apps] |
|---|---|
|
Minimum supported server |
Windows Server 2008 [desktop apps | Windows Store apps] |
|
Header |
|
See also