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date: Mon, 9 Jun 2008 22:47:38 -0700 (PDT),
group: microsoft.public.office.developer.com.add_ins
back
Re: Callback Interface functions NOT being Called
On Jun 10, 2:27 pm, "SvenC" <Sv...@nospam.nospam> wrote:
> Hi Devansh,
>
> > Hello All,
> > I have a office outlook ATL-COM addin.
> > In the main class I am implementing
> > IRibbonExtensibility and
> > a callback interface interface ICallbackInterface which implements the
> > callback functions of the buttons I create in Ribbon interface.
> > My interface MAP looks like this
>
> The ribbon callbacks use IDispatch, always, so you must return
> the "correct IDispatch" implementation
>
> > BEGIN_COM_MAP(CConnect)
> > COM_INTERFACE_ENTRY2(IDispatch, IRibbonExtensibility)
>
> You need COM_INTERFACE_ENTRY2(IDispatch, ICallbackInterface)
>
> BUT: you are violating COM rules by having two distinct implementations
> of the same interface in one object, IDispatch in your case. You should
> create a new coclass which implements ICallbackInterface so that a unique
> IDispatch implementation exists for that object. Store that instance as
> member in your CConnect class and hand it as callback interface to the
> ribbon. That extra object might need a simple C++ callback mechanism to
> communicate back to your CConnect instance.
>
> --
> SvenC
Hello SvenC,
I modified my code. Now my interface map looks like this,
BEGIN_COM_MAP(CConnect)
COM_INTERFACE_ENTRY2(IDispatch, ICallbackInterface)
COM_INTERFACE_ENTRY(AddInDesignerObjects::IDTExtensibility2)
COM_INTERFACE_ENTRY(IRibbonExtensibility)
COM_INTERFACE_ENTRY(ICallbackInterface)
COM_INTERFACE_ENTRY_IID(IID_IExchExt, IExchExt)
COM_INTERFACE_ENTRY_IID(IID_IExchExtSessionEvents,
IExchExtSessionEvents)
COM_INTERFACE_ENTRY_IID(IID_IExchExtMessageEvents,
IExchExtMessageEvents)
END_COM_MAP()
My callback function "ButtonClicked" is still NOT being called.
Outlook is not able to find it.
As you said, that in this implementation I am violating COM rules by
having two distinct implementations of the same interface in one
object i.e. IDispatch,
so my question here is, where am I implementing it twice. I could see
only one implementation, the one which is associated with
ICallbackInterface in
COM_INTERFACE_ENTRY2(IDispatch, ICallbackInterface)
In fact similar kind of application was working for me but in this new
application I am not able to make the callback function work, I do not
know why..
Kindly help me.
Thanks,
Devansh
date: Tue, 10 Jun 2008 05:42:47 -0700 (PDT)
author: Devansh
Re: Callback Interface functions NOT being Called
On Jun 10, 6:36 pm, "SvenC" <Sv...@nospam.nospam> wrote:
> Hi Devansh,
>
> >> The ribbon callbacks use IDispatch, always, so you must return
> >> the "correct IDispatch" implementation
>
> >>> BEGIN_COM_MAP(CConnect)
> >>> COM_INTERFACE_ENTRY2(IDispatch, IRibbonExtensibility)
>
> >> You need COM_INTERFACE_ENTRY2(IDispatch, ICallbackInterface)
>
> > My callback function "ButtonClicked" is still NOT being called.
> > Outlook is not able to find it.
>
> Please show your ICallbackInterface definition in your IDL file.
>
> Is your typelib registered?
>
> Try to debug your code by setting a breakpoint in IDispatchImpl on the
> IDispatch methods: GetIdsFromNames and Invoke. Use Find in Files to
> find the methods in the atl sources.
>
> Check if you get any helpful HRESULTs returned, like member not found
> or typelib not registered.
>
> --
> SvenC
On Jun 10, 6:36 pm, "SvenC" <Sv...@nospam.nospam> wrote:
> Hi Devansh,
>
> >> The ribbon callbacks use IDispatch, always, so you must return
> >> the "correct IDispatch" implementation
>
> >>> BEGIN_COM_MAP(CConnect)
> >>> COM_INTERFACE_ENTRY2(IDispatch, IRibbonExtensibility)
>
> >> You need COM_INTERFACE_ENTRY2(IDispatch, ICallbackInterface)
>
> > My callback function "ButtonClicked" is still NOT being called.
> > Outlook is not able to find it.
>
> Please show your ICallbackInterface definition in your IDL file.
>
> Is your typelib registered?
>
> Try to debug your code by setting a breakpoint in IDispatchImpl on the
> IDispatch methods: GetIdsFromNames and Invoke. Use Find in Files to
> find the methods in the atl sources.
>
> Check if you get any helpful HRESULTs returned, like member not found
> or typelib not registered.
>
> --
> SvenC
Hello SvenC,
I put up the brake points in IDispatchImpl class in GetIdsFromNames
and Invoke methods, then I came to know that I am getting error in
hRes = LoadRegTypeLib(*m_plibid, m_wMajor, m_wMinor, lcid, &pTypeLib);
funtion and the error code first returned was "member not found" i.e.
(ButtonClicked)
then I checked into the registry for the typlib and DLL's path was NOT
entered into it so I entered it,
BUT, now I am getting following error as per the winerror.h
//
// MessageId: TYPE_E_CANTLOADLIBRARY
//
// MessageText:
//
// Error loading type library/DLL.
//
#define TYPE_E_CANTLOADLIBRARY
_HRESULT_TYPEDEF_(0x80029C4AL)
This error was coming to me even before in the very beginning in
DLLRegisterServer() code that time I had commented following line and
had some entries manually.
HRESULT hr = _AtlModule.DllRegisterServer();
Now when I have uncommented it again then I am getting the same error
on running regsvr32 on my DLL.
RegSvr32
---------------------------
DllRegisterServer in C:\Program Files\Oasys\Mail Manager
\MMApplication.dll failed.
Return code was: 0x80029c4a
---------------------------
OK
---------------------------
My IDL file is as follows,
// AddIn.idl : IDL source for AddIn
//
// This file will be processed by the MIDL tool to
// produce the type library (AddIn.tlb) and marshalling code.
import "oaidl.idl";
import "ocidl.idl";
[
object,
uuid(7338E006-B473-44D6-8083-2FBD051CC7E6),
dual,
nonextensible,
helpstring("ICallbackInterface Interface"),
pointer_default(unique)
]
interface ICallbackInterface : IDispatch{
[id(1), helpstring("method ButtonClicked")] HRESULT
ButtonClicked([in] IDispatch* RibbonControl);
};
[
uuid(D6D02DAD-0E3A-4E3F-B1F4-221E8517E570),
version(1.0),
helpstring("MMApplicationCOM 1.0 Type Library")
]
library MMApplicationCOMLib
{
importlib("stdole2.tlb");
[
uuid(37FFBA96-C7C4-4FC7-941A-FB65C2074822),
helpstring("Connect Class")
]
coclass Connect
{
[default] interface IUnknown;
interface ICallbackInterface;
};
/*[
uuid(FF674466-71DC-40B2-BEEA-1A6D8B002DF6),
helpstring("CallbackInterface Class")
]
coclass CallbackInterface
{
[default] interface ICallbackInterface;
};*/
};
I had also tried to put up ICallbackInterface in a difference coclass
but implementing in the same class, that also did not work.
Kindly help me.
Thanks,
Devansh
date: Tue, 10 Jun 2008 23:00:34 -0700 (PDT)
author: Devansh
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