better use _bstr_t(CSTRIBG).Detach() or .copy "Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow Never mind - my own stupidity is the source of every "problem" - Mixture cheers, Alok Gupta VC Forum Q&A :- I/IV Support CRY- Child Relief and You/codeProject$$>

Cross Post => Cross Answer http://www.codeproject.com/script/Forums/View.aspx?fid=4486&msg=2386375[^] :-D If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile. [my articles]

Well, I think you need to post some code. :) If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile. [my articles]

mandanani wrote: I fixed the problem by type casting interface with its coclass. ((CTP_CompInputData_Wrp*)pVal)->pTP_CompanyInputData Please let me know if this is the right approach. I don't think that's a good idea, because a client could quite reasonably implement its own version of your interface, and pass it to your method, causing the type cast to fail and provide no useful error message as to why. If it isn't reasonable to add the property to your interface, you can add an interface to your class that does have that property, and then you can query for that interface safely. Nathan

Interfaces will understand the data types, those are standard, or defined in .idl. Search for UDT in COM, you will get lot of articles, telling how to achieve it.

seem like folks had misunderstood me. I prefer to develop a project with MFC until and unless my boss compels. In fact bosses doesn't know basics of any languange. ;P This is just a question came to mind, and thought of getting all your valuable views :) But MFC adds extra layer over Win32 and will have less (may be negligible to many:-D) performance to Win32. With MFC application can be written in fly ::cool: Bottom-line those who love ooops prefer to use MFC and those traditional C programmers prefer Win32.

For splitter windows, you only need one CSingleDocTemplate object that is created like: CSingleDocTemplate* pDocControlTemplate; pDocControlTemplate = new CSingleDocTemplate( IDR_MAINFRAME, RUNTIME_CLASS(CThingDoc), RUNTIME_CLASS(CMainFrame), // main SDI frame window RUNTIME_CLASS(NULL)); AddDocTemplate(pDocControlTemplate); "A good athlete is the result of a good and worthy opponent." - David Crow "To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Actually, this is a method which does the job of constructor. Here below is the code snippet: class CashflowVO derived from CValueObjectBase >>>>>>>>>>>>>>>>>>>> CValueObjectBase* CashflowVO::clone() const { return new CashflowVO(*this); } >>>>>>>>>>>>>>>>>>>> Clone methos is pure virtual method in CValueObjectBase. The below code calls the respective clone method of derived object. Here pValueObjectBaseOrg can be any of the derived class, but respective object is getting copied and pointer is returned to pValueObjectBase. >>>>>>>>>>>>>>>>>>>> CValueObjectBase * m_pValueObjectBase = m_pValueObjectBaseOrg->clone(); >>>>>>>>>>>>>>>>>>>> Hope I make sense here.

mandanani wrote: Has Microsoft have any plans to re-start VC++ certifications?? vc++ exams are already obselete.. now you can prepare for .net exams/certification "Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow cheers, Alok Gupta VC Forum Q&A :- I/ IV

They haven't discontinued it, there are now two types, MCSD and MCSD.Net. The regular MCSD covers C++, the others are VB.Net and C#. You can check out transcender.com for exam preparation software, it's expensive but well worth it, especially if you can get your company to pay for it. -- Rocky Dean Pulley