Implement the Office com plug-in

Other references Http://www.vckbase.com/document/viewdoc? Id = 1749 Use vc6.0 to compile the word plug-in (office2007) Http://www.vckbase.com/document/viewdoc? Id = 1737 Write the word plug-in with vc6.0 (office2k, XP, 03) Bytes ------------------------------------------------------------------------------------ The above is reproduced by myself The following is an article by zdnet China.

Implement the Office com plug-in

Author: zdnet China PM

When software developers consider extending Microsoft Office, the most common method is to use VB. In fact, it is quite easy to use C ++ and ATL to expand the office. I will show you how to create a project and register the Office plug-in as a COM Object to the office. (This article uses outlook as the main program of the plug-in .) Project Establishment Let's create a new ATL Project. First, add a simple COM object named plugin. Use the Class Wizard to add the _ idtextensibility2 interface to the plugin class. (Do not forget to select the isupporterrorinfo check box .) The class wizard adds the following methods to the plugin class: onconnection, ondisconnection, onaddinsupdate, onstartupcomplete, and onbeginshutdown. This article only deals with onconnection and ondisconnection methods. Then, create a type definition (typedef, which is only used to simplify the Code) in the plugin header file, as shown below: # Define appid 102 Class cplugin; Typedef idispeventimpl <appid, cplugin, & diid_applicationevents, & Libid_outlook, 9, 0> outlooksink; Now we need to add the outlooksink class to the inheritance list of the plugin class: Class atl_no_vtable cplugin: Public iplugin, Public idispatchimpl <_ idtextensibility2, &__ uuidof (_ idtextensibility2 ), & Libid_addindesignerobjects,/* wmajor = */1,/* wminor = */0>, Public outlooksink In the plugin. h file, introduce the Declaration for mso9.dll and msoutl9.olb, as shown below: # Import "C: \ Program Files \ common files \ designer \ msaddndr. dll "\ Raw_interfaces_only ,\ Raw_native_types, no_namespace, named_guids, auto_search # Import "C: \ Program Files \ Microsoft Office \ mso9.dll "\ Rename_namespace ("Office") named_guids # Import "C: \ Program Files \ Microsoft \ Office \ msoutl9.olb "\ Rename_namespace ("Outlook"), raw_interfaces_only ,\ Named_guids Using namespace office; Using namespace outlook; Note: You need to follow the file path in your system to correct the paths of the introduced files above. You must register the office extension as a COM component to the office. Visual c ++ automatically generates the. RGS file to control com registration. Add additional projects to the. RGS file to support Automatic Registration of office. Under the HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ office key, there are several child keys, each of which corresponds to each office application installed in the system. These keys contain the add-in key ). To register our COM Object in office, we need to add a new key to the plug-in key. There is also a corresponding tree under HKEY_CURRENT_USER to control the plug-in of a single user, while HKEY_LOCAL_MACHINE controls the plug-in of the entire machine. The following is the outlook plug-in registration code in the. RGS file: Hkcu { Noremove Software { Noremove Microsoft { Noremove Office { Noremove Outlook { Noremove addins { Forceremove outlookdemo. plugin.1 { Val friendlyname = S' outlook in' Val description = S' an outlook in' Val loadbehavior = D 3 Val commandlinesafe = D 0 } } } } } } } This set of registration items registers plug-ins for specific users. To set the plug-ins to be available throughout the system, you only need to change the hkcu to HKLM. The loadbehavior value controls the actions of the plug-in after the main program runs. To enable the agent to run automatically after the main program starts running, set loadbehavior to 3. If you want to manually load the plug-in, set loadbehavior to 8. If you compile this project, you have an outlook plug-in that does not actually do anything, but it is indeed a working plug-in. We now add some features to this plug-in. First, add a new member variable: _ Applicationptr m_papp; Then set the onconnection method: Stdmethod (onconnection) (lpdispatch application, Ext_connectmode connectmode, Lpdispatch addininst, Safearray ** custom) { Hresult rslt = s_ OK; Try { M_papp = application; Outlooksynch: dispeventadvise (m_papp ); } Catch (_ com_error & E ){ Outputdebugstring (E. errormessage ()); Rslt = e_unexpected; } Return rslt; } Set the corresponding ondisconnection method as follows: Stdmethod (ondisconnection) (ext_disconnectmode removemode, safearray ** Custom) { Hresult rslt = s_ OK; Try { Outlooksynch: dispeventunadvise (m_papp ); } Catch (_ com_error & E ){ Outputdebugstring (E. errormessage ()); Rslt = e_unexpected; } Return rslt; } Now we can receive several events, such as onnewmail events. The best way to get event information and their IDs is to open the OLE/COM viewer on the msvc tool menu ). Go to the File menu and select View typelib. Browse the msoutl9.olb file. Scroll down the dispinterface of applicationevents. Note that the ID of the onnewmail event is 0x0000f003 .. Add an onnewmail method to the cplugin class. Create a sink ing to associate the onnewmail method with the onnewmail event. Begin_sink_map (cplugin) Sink_entry_ex (appid, Outlook: diid_applicationevents ,/ 0x0000f003, onnewmail) End_sink_map () Now we only need to complete the onnewmail event processing function. Void _ stdcall onnewmail (){ MessageBox (null, "new mail", null, mb_ OK ); } To remove these annoying pop-up dialog boxes (created by this project), follow these steps: Go to the tools | Options menu of outlook. Select the other tag. Click the advanced Options button. Click com plug-in. Select the outlook plugin item and click Remove. As you can see, implementing the Office com plug-in is not difficult or even easy. It is most difficult to create a Com office plug-in to calculate the initial values of all parameters. However, once you find that you can get this information in the OLE/COM viewer, this will not be a problem.