Re: Persisting data to the registry
Make sure you derive publicly from your interface. The message
complains about you having forgotten to put the public keyword in
your derivation.
--
=====================================
Alexander Nickolov
Microsoft MVP [VC], MCSD
email: agnickolov@mvps.org
MVP VC FAQ: http://vcfaq.mvps.org
=====================================
"John" <John@discussions.microsoft.com> wrote in message
news:A8A21CAA-10B5-4365-8792-8A6C9C5823C0@microsoft.com...
Thanks Igor,
That was in fact the problem my implementation code didn't derive from
IPersistRegistry.
But now when I compile I get the following error;
error C2243: 'static_cast' : conversion from 'CSomeObject::_ComMapClass *'
to 'IPersistRegistry *' exists, but is inaccessible
Both the Load and Save methods are declared as public.
Any ideas?
"Igor Tandetnik" wrote:
John <John@discussions.microsoft.com> wrote:
I then added the interface to my objects com map;
BEGIN_COM_MAP(CSomeObject)
COM_INTERFACE_ENTRY(IPersistRegistry)
END_COM_MAP()
And finally the implementation template class to my object;
class ATL_NO_VTABLE CSomeObject:
...
...
public IPersistRegistryImpl<CSomeObject>
Now when I compile I get the following displayed
error C2078: too many initializers
error C2440: 'initializing' : cannot convert from
'ATL::_ATL_CREATORARGFUNC (__stdcall *)' to 'DWORD_PTR'
error C2440: 'static_cast' : cannot convert from
'CSomeObject::_ComMapClass *' to 'IPersistRegistry *'
The error message suggests that IPersistRegistryImpl, and hence
CSomeObject, does not in fact derive from IPersistRegistry.
--
With best wishes,
Igor Tandetnik
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