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IMFAttributes::CopyAllItems method

Copies all of the attributes from this object into another attribute store.

Syntax


HRESULT CopyAllItems(
  [in]  IMFAttributes *pDest
);

Parameters

pDest [in]

A pointer to the IMFAttributes interface of the attribute store that receives the copy.

Return value

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

Remarks

This method deletes all of the attributes originally stored in pDest.

This interface is available on the following platforms if the Windows Media Format 11 SDK redistributable components are installed:

  • Windows XP with Service Pack 2 (SP2) and later.
  • Windows XP Media Center Edition 2005 with KB900325 (Windows XP Media Center Edition 2005) and KB925766 (October 2006 Update Rollup for Windows XP Media Center Edition) installed.

Examples

To copy a single attribute rather than all of the attributes, you can use the following code:


HRESULT CopyAttribute(IMFAttributes *pFrom, IMFAttributes *pTo, REFGUID guidKey)
{
    PROPVARIANT val;

    HRESULT hr = pFrom->GetItem(guidKey, &val);

    if (SUCCEEDED(hr))
    {
        hr = pTo->SetItem(guidKey, val);
        PropVariantClear(&val);
    }
    else if (hr == MF_E_ATTRIBUTENOTFOUND)
    {
        hr = S_OK;
    }
    return hr;
}


Requirements

Minimum supported client

Windows Vista [desktop apps | Windows Store apps]

Minimum supported server

Windows Server 2008 [desktop apps | Windows Store apps]

Header

Mfobjects.h (include Mfidl.h)

Library

Mfuuid.lib

See also

IMFAttributes
Attributes and Properties

 

 

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