Hi,
I have created a plugin for Outlook, I want add ribbon controls to my
existing OUtlook plugin.
When I Implement "IRibbonExtensibility" Interface in the class that was
implemented "_IDTExtensibility2" Interface it throws
up the following error message


ATL::CComObjectBase' : cannot instantiate abstract class
with
[
Base=CGrabExplorer
]
due to following members:
'HRESULT Office::IRibbonExtensibility::raw_GetCustomUI(BSTR ,BSTR *)' :
is abstract


I have implemented "GetCustomUI" API and returning S_OK


How do i resolve this?

Thanks in Advance.

--
Message posted via http://www.officekb.com

GetCustomUI() returns a string value, specifically a BStr, not S_OK. Does
your declaration look something like this, given that my declaration is from
a C# project:

[ComImport(), Guid("000C0396-0000-0000-C000-000000000046"),
TypeLibType((short)0X1040)]

public interface IRibbonExtensibility

{

[return: MarshalAs(UnmanagedType.BStr)]

[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType =
MethodCodeType.Runtime), DispId(1)]

string GetCustomUI([In(), MarshalAs(UnmanagedType.BStr)] string RibbonID);

}


--
Ken Slovak
[MVP - Outlook]
http://www.slovaktech.com
Author: Professional Programming Outlook 2007.
Reminder Manager, Extended Reminders, Attachment Options.
http://www.slovaktech.com/products.htm


"KarthikonIT via OfficeKB.com" u54961@uwe wrote in message
news:9ffc994f04fcd@uwe...
Hi,
I have created a plugin for Outlook, I want add ribbon controls to my
existing OUtlook plugin.
When I Implement "IRibbonExtensibility" Interface in the class that was
implemented "_IDTExtensibility2" Interface it throws
up the following error message


ATL::CComObjectBase' : cannot instantiate abstract class
with
[
Base=CGrabExplorer
]
due to following members:
'HRESULT Office::IRibbonExtensibility::raw_GetCustomUI(BSTR ,BSTR *)'
:
is abstract


I have implemented "GetCustomUI" API and returning S_OK


How do i resolve this?

Thanks in Advance.

--
Message posted via http://www.officekb.com

Hi,

Thx for ur reply,
I ve created my plugin in C++,

STDMETHOD(GetCustomUI)(BSTR RibbonID, BSTR * RibbonXml)

This API will return XML content of the ribbon control in "RibbonXml"
parameter so the return value is not a string.

My sample works fine but when i implement this "IRibbonExtensibility"
interface in my existing Outlook plugin it throws

up the error

ATL::CComObjectBase' : cannot instantiate abstract class
with
[
Base=CGrabExplorer
]
due to following members:
'HRESULT Office::IRibbonExtensibility::raw_GetCustomUI(BSTR ,BSTR *)' :
is abstract"


I m implementing this interface in the class which already implmented
"_IDTExtensibility2"

I ve tried this multiple times but it throws up same error.

Thanks..







Ken Slovak - [MVP - Outlook] wrote:
GetCustomUI() returns a string value, specifically a BStr, not S_OK. Does
your declaration look something like this, given that my declaration is from
a C# project:

[ComImport(), Guid("000C0396-0000-0000-C000-000000000046"),
TypeLibType((short)0X1040)]

public interface IRibbonExtensibility

{

[return: MarshalAs(UnmanagedType.BStr)]

[MethodImpl(MethodImplOptions.InternalCall, MethodCodeType =
MethodCodeType.Runtime), DispId(1)]

string GetCustomUI([In(), MarshalAs(UnmanagedType.BStr)] string RibbonID);

}

Hi,
I have created a plugin for Outlook, I want add ribbon controls to my
[quoted text clipped - 18 lines]

Thanks in Advance.

--
Message posted via OfficeKB.com
http://www.officekb.com/Uwe/Forums.a...ddins/200912/1

You definitely have to handle the ribbon callbacks in the same class that
implements extensibility.

See if the C++ information for the ribbon at
http://blogs.msdn.com/jensenh/archiv...c-and-atl.aspx
helps you at all. I don't do C++ addins, so I can't help more specifically.

--
Ken Slovak
[MVP - Outlook]
http://www.slovaktech.com
Author: Professional Programming Outlook 2007.
Reminder Manager, Extended Reminders, Attachment Options.
http://www.slovaktech.com/products.htm


"KarthikonIT via OfficeKB.com" u54961@uwe wrote in message
news:a00a15eef9208@uwe...
Hi,

Thx for ur reply,
I ve created my plugin in C++,

STDMETHOD(GetCustomUI)(BSTR RibbonID, BSTR * RibbonXml)

This API will return XML content of the ribbon control in "RibbonXml"
parameter so the return value is not a string.

My sample works fine but when i implement this "IRibbonExtensibility"
interface in my existing Outlook plugin it throws

up the error

ATL::CComObjectBase' : cannot instantiate abstract class
with
[
Base=CGrabExplorer
]
due to following members:
'HRESULT Office::IRibbonExtensibility::raw_GetCustomUI(BSTR ,BSTR
*)' :
is abstract"


I m implementing this interface in the class which already implmented
"_IDTExtensibility2"

I ve tried this multiple times but it throws up same error.

Thanks..