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MFGetAttributeSize function (mfapi.h)
Retrieves an attribute whose value is a size, expressed as a width and height.
Syntax
HRESULT MFGetAttributeSize(
[in] IMFAttributes *pAttributes,
[in] REFGUID guidKey,
[out] UINT32 *punWidth,
[out] UINT32 *punHeight
);
Parameters
[in] pAttributes
Pointer to the IMFAttributes interface of the attribute store.
[in] guidKey
GUID that identifies which value to retrieve. The attribute type must be MF_ATTRIBUTE_UINT64.
[out] punWidth
Receives the width.
[out] punHeight
Receives the height.
Return value
This function can return one of these values.
Remarks
Some attributes specify a size as a packed UINT64 value. Use this function to get the numerator and denominator as separate 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 |
See also
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