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MFGetAttributeSize function

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

pAttributes [in]

Pointer to the IMFAttributes interface of the attribute store.

guidKey [in]

GUID that identifies which value to retrieve. The attribute type must be MF_ATTRIBUTE_UINT64.

punWidth [out]

Receives the width.

punHeight [out]

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

Minimum supported client

Windows Vista [desktop apps | Windows Store apps]

Minimum supported server

Windows Server 2008 [desktop apps | Windows Store apps]

Header

Mfapi.h

See also

Media Foundation Functions
MFSetAttributeSize

 

 

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