Re: Cannot implement SetSite for IObjectWithSiteImpl, get compiler error

"Igor Tandetnik" <>
Wed, 23 Aug 2006 00:58:32 -0400
"roland orlando" <> wrote in message

However I get a compiler error when I do this.

error C2509: 'SetSite' : member function not declared in 'CBHO'

So, have you declared the method in CBHO class definition?

It's already declared with the automatically generated :

public CComObjectRootEx<CComSingleThreadModel>,
public CComCoClass<CBHO, &CLSID_BHO>,
public IObjectWithSiteImpl<CBHO>,
public IDispatchImpl<IBHO, &IID_IBHO, &LIBID_BHELPERLib>

Just deriving from IObjectWithSiteImpl is not enough. You want to
override the method from the base class - you need to declare it in the
derived class. Consider:

class Base {
    virtual void f() {}

class Derived : public Base {
    void f(); // must have this

// Try this without the declaration above - you'll get the same error
void Derived::f() {

With best wishes,
    Igor Tandetnik

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