lrc_variant_CoObject

Assigns an IUnknown interface pointer to a variant.

VARIANT lrc_variant_CoObject( IUnknown* pUnknown );

VARIANT lrc_variant_CoObject_by_variant( IUnknown* pUnknown ); 

The lrc_variant_CoObject function assigns an IUnknown interface pointer to a variant.

The lrc_variant_CoObject_by_variant function assigns an IUnknown interface pointer to a variant and returns a variant containing a reference to the variant containing the IUnknown reference.

Return Values

lrc Return Values

Parameterization

Parameterization is not applicable to this function.

Example

This example assigns an IUnknown interface pointer to a variant.

//Build variant

IUnknown * IUnknown_0 = 0;

IDispatch * IDispatch_0 = 0;

{

    GUID pClsid = lrc_GUID("ADODB.Recordset.2.1");

    IUnknown * pUnkOuter = (IUnknown*)NULL;

    unsigned long dwClsContext = lrc_ulong("7");

    GUID riid = IID_IUnknown;

    lrc_CoCreateInstance(&pClsid, pUnkOuter, dwClsContext, &riid, (void**)&IUnknown_0, CHECK_HRES);

}

{

    GUID riid = IID_IDispatch;

    lrc_IUnknown_QueryInterface(IUnknown_0, &riid, (void**)&IDispatch_0, CHECK_HRES);

  }

//Assign pointer to variant

VARIANT var = lrc_variant_CoObject(IUnknown_0);