The QueryStatus had a bad prototype
Quote
/* [input_sync] */ HRESULT ( STDMETHODCALLTYPE *QueryStatus )(
__RPC__in IOleCommandTarget * This,
/* [unique][in] */ __RPC__in_opt const GUID *pguidCmdGroup,
/* [in] */ ULONG cCmds,
/* [out][in][size_is] */ __RPC__inout_ecount_full(cCmds) OLECMD prgCmds[ ],
/* [unique][out][in] */ __RPC__inout_opt OLECMDTEXT *pCmdText);
must be change in
Quote
/* [input_sync] */ HRESULT ( STDMETHODCALLTYPE *QueryStatus )(
__RPC__in IOleCommandTarget * This,
/* [unique][in] */ __RPC__in_opt const GUID *pguidCmdGroup,
/* [in] */ ULONG cCmds,
/* [out][in][size_is] */ __RPC__inout_ecount_full(cCmds) OLECMD * prgCmds[ ],
/* [unique][out][in] */ __RPC__inout_opt OLECMDTEXT *pCmdText);
prgCmds is apointer on a OLECMD structure and not a OLECMD structure (8 bytes)
correct usage is shown in this page.
http://msdn.microsoft.com/en-us/library/5d4becy5(VS.80).aspx (http://msdn.microsoft.com/en-us/library/5d4becy5(VS.80).aspx)
Quote
void CContainerCntrItem::DoOleCmd()
{
IOleCommandTarget *pCmd = NULL;
HRESULT hr = E_FAIL;
OLECMD ocm={OLECMDID_PRINT, 0};
hr = m_lpObject->QueryInterface(IID_IOleCommandTarget,reinterpret_cast<void**>(&pCmd));
if(FAILED(hr))
return;
//*****************************************************
hr = pCmd->QueryStatus(NULL, 1, &ocm, NULL);
//*****************************************************
if(SUCCEEDED(hr) && (ocm.cmdf & OLECMDF_ENABLED))
{
//Command is available and enabled so call it
COleVariant vIn;
COleVariant vOut;
hr = pCmd->Exec(NULL, OLECMDID_PRINT, OLECMDEXECOPT_DODEFAULT, &vIn, &vOut);
ASSERT(SUCCEEDED(hr));
}
pCmd->Release();
}
http://msdn.microsoft.com/en-us/library/5d4becy5(VS.80).aspx
(http://msdn.microsoft.com/en-us/library/5d4becy5(VS.80).aspx)