C / C++ / MFC

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Re: Unregister Class function MF28-Dec-05 19:42 MF 28-Dec-05 19:42  If you search the "UnregisterClass" in VS, you can find the following in the Remark. <--- Before calling this function, an application must destroy all windows created with the specified class. All window classes that an application registers are unregistered when it terminates. --> If you have tried to unregister the class within the WM_DESTROY msg handler of the window instance, it should be failed. Re: Unregister Class function ragavan29-Dec-05 0:10 ragavan 29-Dec-05 0:10  Thanks I got your point . So where can i call this function . I tried calling in DLL_PROCESS_DETACH it is giving error code 1411. can you please help me in this regard About Design Pattern in MFC : Urgent Reply parims28-Dec-05 17:47 parims 28-Dec-05 17:47  Hello , I am new to VC++,MFC. Please suggest to me , Which design patterns are used in MFC . Plz , Give Urgent reply Bye Praveen.C Praveen Kumar Re: About Design Pattern in MFC : Urgent Reply mbcvamsidhar28-Dec-05 18:53 mbcvamsidhar 28-Dec-05 18:53  Can you elaborate.............. VamsiDhar.MBC SoftwareEngineer Re: About Design Pattern in MFC : Urgent Reply parims28-Dec-05 18:55 parims 28-Dec-05 18:55  I am Vc++ Professional , (c++,vc++,MFC) In Interviews they are asking about Design Patterns. I am not knowledge about design patterns about vc++. But In Java,J2EE I know about MVC architecture. Plz Send Urgent reply. Bye Praveen, Praveen. Re: About Design Pattern in MFC : Urgent Reply Johann Gerell28-Dec-05 19:19 Johann Gerell 28-Dec-05 19:19  The Document-View functionality is a variation of MVC (Model-View-Controller). -- The Blog: Bits and Pieces Re: About Design Pattern in MFC : Urgent Reply vikas amin29-Dec-05 0:35 vikas amin 29-Dec-05 0:35  If its MFC they mean Doc-View architecture . There are two classification SDI and MDI u need to make a study on it first . Vikas Amin Embin Technology Bombay vikas.amin@embin.com c++ question yourbuddy7728-Dec-05 17:40 yourbuddy77 28-Dec-05 17:40  Require some help for solving the following: consider a function f1(f2(),f3()) f1 takes 2 params,return type of func f2 and return type of f3. f2,f3 are both library functions so no code available. assuming R2L execution,f3 is executed first.If it throws up an error,i want to return immediately without executing f2 or f1.Hw do i do this type of dynamic checking ? Re: c++ question Prakash Nadar28-Dec-05 17:50 Prakash Nadar 28-Dec-05 17:50  is f3 throwing an error or an exception? Well, IMHO, this is not the right way of using the function that could fail. -Prakash Re: c++ question yourbuddy7728-Dec-05 17:54 yourbuddy77 28-Dec-05 17:54  i knw tht..But it's a question i was asked at an intw Re: c++ question Prakash Nadar28-Dec-05 17:56 Prakash Nadar 28-Dec-05 17:56  where did you give the interview? -Prakash Re: c++ question Johann Gerell28-Dec-05 19:20 Johann Gerell 28-Dec-05 19:20  Well, since you use the term "throw", then I assume f3 will throw an exception on error, not return an error code. If so, then neither f2 or f1 will be executed. If you mean that f3 returns an error code, then you must check the values before passing them to f1. This is really elementary C++, so I wonder: 1) Do they really ask such questions at interviews? 2) have you not done your homework? -- The Blog: Bits and Pieces Re: c++ question vikas amin28-Dec-05 20:34 vikas amin 28-Dec-05 20:34  I dont think that so simple if it was asked to a experienced person . Have u ever experimented the real result? http://www.parashift.com/c++-faq-lite/ go throught this link its good for interview Vikas Amin Embin Technology Bombay vikas.amin@embin.com identifier 'THIS' skumaran_1928-Dec-05 17:38 skumaran_19 28-Dec-05 17:38  hi, I am trying to compile a vc6.0 project in vc8.0. I am getting the following error. error C2061: syntax error : identifier 'THIS' I tried to use #undef THIS and #define THIS. But it didnt work. Is it possible that old windows files are getting linked. In that case as well the definition of 'THIS' hasn't changed and its the same. Can anyone suggest a fix? regards, sk80. Re: identifier 'THIS' koothkeeper29-Dec-05 10:14 koothkeeper 29-Dec-05 10:14  Shouldn't it be lower case (this)? Re: identifier 'THIS' segment_fault3-Jan-06 17:47 segment_fault 3-Jan-06 17:47  I wonder if there is a MACRO somewhere in your code that uses 'THIS' in place of 'this'? Search for all references to 'THIS' -- what do you get? Read more of what I have to say at http://directx9.blogspot.com/ How to change the Background color of AfxMessageBox? LaHaHa28-Dec-05 17:35 LaHaHa 28-Dec-05 17:35  I would like to know how to change the Background color of AfxMessageBox? Please help! Re: How to change the Background color of AfxMessageBox? Owner drawn28-Dec-05 17:51 Owner drawn 28-Dec-05 17:51  Here is an excellent sample... Download the CtlColor Explorer from this page.... http://www.flounder.com/download.htm[^] Jesus Loves You and Me <marquee direction="up" height="50" scrolldelay="1" step="1" scrollamount="1" style="background-color:'#44ccff'"> --Owner Drawn --Nothing special --Defeat is temporary but surrender is permanent --Never say quits --Jesus is Lord Re: How to change the Background color of AfxMessageBox? LaHaHa28-Dec-05 18:39 LaHaHa 28-Dec-05 18:39  Thank you very much! Could you give me more hints? Please help! Re: How to change the Background color of AfxMessageBox? Owner drawn28-Dec-05 18:44 Owner drawn 28-Dec-05 18:44  I can give a keyword for further searches.... MSGF_DIALOGBOX. When a dialog comes up this is the message sent. You can trap this in WM_ENTERIDLE message handler. Check for this message inside the handler for WM_ENTERIDLE. This is in wParam argument. If this is the case then lParam will have Handle to the dialog box or message box. Rest is up to you. He he. Jesus Loves You and Me <marquee direction="up" height="50" scrolldelay="1" step="1" scrollamount="1" style="background-color:'#44ccff'"> --Owner Drawn --Nothing special --Defeat is temporary but surrender is permanent --Never say quits --Jesus is Lord Re: How to change the Background color of AfxMessageBox? LaHaHa28-Dec-05 20:32 LaHaHa 28-Dec-05 20:32  Thank you very much! I search some messages. They suggest to write a dialog box for it. I use this method now! How to Write a function which will execute before the main function in C! No Pragma's! Owner drawn28-Dec-05 17:17 Owner drawn 28-Dec-05 17:17  LOL How should I do it. I cannot use a pragma or a compiler option. Hmmm...Thinking Any ideas... Jesus Loves You and Me <marquee direction="up" height="50" scrolldelay="1" step="1" scrollamount="1" style="background-color:'#44ccff'"> --Owner Drawn --Nothing special --Defeat is temporary but surrender is permanent --Never say quits --Jesus is Lord Re: How to Write a function which will execute before the main function in C! No Pragma's! Prakash Nadar28-Dec-05 17:23 Prakash Nadar 28-Dec-05 17:23  First off, what and why do you want to do ? -Prakash Re: How to Write a function which will execute before the main function in C! No Pragma's! Owner drawn28-Dec-05 17:42 Owner drawn 28-Dec-05 17:42  It was asked in an Interview. I suggested using pragma's. They asked how to do without that. Still confused... Jesus Loves You and Me <marquee direction="up" height="50" scrolldelay="1" step="1" scrollamount="1" style="background-color:'#44ccff'"> --Owner Drawn --Nothing special --Defeat is temporary but surrender is permanent --Never say quits --Jesus is Lord Re: How to Write a function which will execute before the main function in C! No Pragma's! Prakash Nadar28-Dec-05 17:42 Prakash Nadar 28-Dec-05 17:42  Owner drawn wrote: It was asked in an Interview. yes i suspected that. well i am not too sure, may be declare my own entrypoint to the linker. -Prakash

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