Example: lrc_CoObject_from_variant
In this example, lrc_CoObject_from_variant extracts an IUnknown interface pointer from 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); } //Extract IUnknown Interface VARIANT var = lrc_variant_CoObject((IUnKnown*) IUnknown_0); IUnknown_0= (IUnknown*)lrc_CoObject_from_variant(var);