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MFGetAttribute2UINT32asUINT64 function (mfapi.h)
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
[in] pAttributes
A pointer to the IMFAttributes interface of the attribute store.
[in] guidKey
A GUID that identifies which value to retrieve. The attribute type must be MF_ATTRIBUTE_UINT64.
[out] punHigh32
Receives the high-order 32 bits.
[out] punLow32
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
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista [desktop apps | UWP apps] |
| Minimum supported server | Windows Server 2008 [desktop apps | UWP apps] |
| Target Platform | Windows |
| Header | mfapi.h (include Mfapi.h) |
See also
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