Re: member variables scope in atl com dll...

"Igor Tandetnik" <>
Thu, 26 Apr 2007 11:46:17 -0400
John <> wrote:

class ATL_NO_VTABLE CMyTest :
CMyDatabase m_objDatabase;

STDMETHODIMP CMyTest::OpenDatabase(BSTR* username)
m_objDatabase= new CMyDatabase();

How does this compile? You assign a CMyDatabase* pointer to an object of
type CMyDatabase. Does CMyDatabase class have an assignment operator
taking a pointer? What does this operator do?


Does CMyDatabase provide operator-> ? How does it work?

//here m_objDatabase is getting null. I want to use m_objDatabase in
this function and already created in Opendatabase funcion.
STDMETHODIMP CMyTest::UseDatabase()
if (m_objDatabase != NULL)

Again, considering that m_objDatabase is not a pointer, how does this
comparison work?
With best wishes,
    Igor Tandetnik

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