DEVELOPERS FORUM - How to begin with development of Innovator client with C++

comeoncn - Saturday, October 23, 2010 4:03 AM:

I tried to create a project to connect the Innovator server  with C++.

code: 

CComPtr<IIomFactoryComIncoming> pFactory ;

pFactory.CoCreateInstance(__uuidof(IomFactory));

// error occured

CComPtr<IHttpServerConnectionComIncoming> pConnection = pFactory->CreateHttpServerConnection(...);

The error is ---

error C2039: 'CreateHttpServerConnection' : is not a member of 'ATL::_NoAddRefReleaseOnCComPtr<T>' e:iom_mfciom_mfcdlg.cpp 166

Can anybody help me?

Environment: WINXP 32, VS2005, C++, Innovator 9.1

snnicky - Thursday, November 4, 2010 8:05 AM:

Here is working sample:

#import "c:WindowsMicrosoft.NETFrameworkv2.0.50727mscorlib.tlb" auto_rename
using namespace mscorlib;
#import "c:	empIOM9.1.tlb" auto_rename

//......

void Ciom_mfcDlg::OnBnClickedButton1()
{
	MessageBox(_T("start"));
	CComPtr<IOM::IIomFactoryComIncoming> pFactory;
	HRESULT hr = pFactory.CoCreateInstance(__uuidof(IOM::IomFactory));
	if( !SUCCEEDED(hr) )
	{
		MessageBox(_T("error 1"));
		return;
	}
	MessageBox(_T("here 1"));

	CComPtr<IOM::IHttpServerConnectionComIncoming> pConnection = pFactory->CreateHttpServerConnection("localhost/.../InnovatorServer.aspx", "i91sp6", "admin", "innovator");
	MessageBox(_T("here 2"));

	CComPtr<IOM::IItemComIncoming> pItem = pConnection->Login();
	MessageBox(_T("here 3"));

	_bstr_t str = pItem->GetToString();
	MessageBox(_T("here 4"));

	MessageBox(str);

	MessageBox(_T("end"));
}

The error you described may occur if pFactory is incorrectly declared. For example the error would happened if I would declared pFactory as

	CComPtr<IOM::IIomFactoryComIncomingPtr> pFactory;

Error	1	error C2039: 'CreateHttpServerConnection' : is not a member of 'ATL::_NoAddRefReleaseOnCComPtr'	d:snnicky...iom_mfciom_mfcdlg.cpp	176	1	iom_mfc

comeoncn - Saturday, November 6, 2010 7:21 AM:

Thanks very much for your tips.

I think it works now...