MFSetAttribute2UINT32asUINT64 function (mfapi.h)

Article
02/22/2024

Packs two UINT32 values into a UINT64 attribute value.

Syntax

HRESULT MFSetAttribute2UINT32asUINT64(
  [in] IMFAttributes *pAttributes,
  [in] REFGUID       guidKey,
  [in] UINT32        unHigh32,
  [in] UINT32        unLow32
);

Parameters

[in] pAttributes

A pointer to the IMFAttributes interface of the attribute store.

[in] guidKey

A GUID that identifies the value to set. If this key already exists, the function overwrites the old value.

[in] unHigh32

The value to store in the high-order 32 bits of the UINT64 value.

[in] unLow32

The value to store in the low-order 32 bits of the UINT64 value.

Return value

If this function succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Remarks

Internally, this functions calls Pack2UINT32AsUINT64 to create the 64-bit value, and IMFAttributes::SetUINT64 to set the attribute.

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)