lrc_variant_CoObject_by_ref

Assigns a pointer to an IUnknown interface in a variant.

VARIANT lrc_variant_CoObject_by_ref( IUnknown* pUnknown );

The lrc_variant_CoObject_by_ref function assigns a pointer to an IUnknown interface in a variant.

Return Values

lrc Return Values

Parameterization

Parameterization is not applicable to this function.

Example

This example assigns a pointer to an IUnknown interface in 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_by_ref(IUnknown_0);