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  4. Convert BSTR to Const char*

Convert BSTR to Const char*

Scheduled Pinned Locked Moved C / C++ / MFC
csharpc++ioscareer
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  • C CPallini

    Probably you've to replace

    TestFile << elementValue[i];

    with

    TestFile.write( (const char*) elementValue[i], _tcslen(elementValue[i])*sizeof(TCHAR));

    since even a wostream would not do the trick. :)

    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.
    This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
    [My articles]

    M Offline
    M Offline
    manju 123
    wrote on last edited by
    #3

    Sorry sir... not working.. yet the same result.. I am getting output as hhhhh

    Hi.. I am Mnaju.I have Completed my B.E Computers Science.Lokking for a job.I am interested in VC++ manju

    C 1 Reply Last reply
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    • M manju 123

      Sorry sir... not working.. yet the same result.. I am getting output as hhhhh

      Hi.. I am Mnaju.I have Completed my B.E Computers Science.Lokking for a job.I am interested in VC++ manju

      C Offline
      C Offline
      CPallini
      wrote on last edited by
      #4

      What's the input, instead?

      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.
      This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
      [My articles]

      M 1 Reply Last reply
      0
      • C CPallini

        What's the input, instead?

        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.
        This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
        [My articles]

        M Offline
        M Offline
        manju 123
        wrote on last edited by
        #5

        CPallini wrote:

        What's the input, instead?

        Actually i will get the sharepoint folders which are stored in structures in the dll... Actually i must get ///////////////////////////// http://sharepoint/Docs http://sharepoint/News http://sharepoint/Reports http://sharepoint/SearchCenter http://sharepoint/SiteDirectory ///////////////////////////// when i put printf i.e printf("%d. is %S \n", i+1, elementValue[i]); I am getting the value for elementValue[i]

        Hi.. I am Mnaju.I have Completed my B.E Computers Science.Lokking for a job.I am interested in VC++ manju

        C 1 Reply Last reply
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        • M manju 123

          Hi all.. As i am new c# .net......I have created a structure in Dll and calling that DLL in vc++ console Application.... I am getting the structure variable in my console application... when i put printf..I am able to see the values.. but when i save it in a text file i am getting buffer value .. Actually i am trying with code.. const _TCHAR *elementName[100]; const _TCHAR *elementValue[100]; Sharepoint_API::StructGetSite HUGEP *pBSTR; hr = SafeArrayAccessData(pICalc->GetData, (void HUGEP* FAR*)&pBSTR); for(i=0; i<pBSTR[0].totAttribute; i++){ elementName [i] = "NAME"; elementValue[i] = (LPCTSTR)pBSTR[i].Atrribute; printf("%d. is %S \n", i+1, elementValue[i]); ofstream TestFile("E:\\Test.txt",ios::app); if(TestFile) { TestFile<<elementValue[i];//"dd";//elementValue[i]; } else if(!TestFile) { } TestFile.close(); In printf I am getting the correct value... but in text file i am getting "h" pBSTR[0].totAttribute is the total count i am getting from structure from dll thank you....very much.. manju

          Hi.. I am Mnaju.I have Completed my B.E Computers Science.Lokking for a job.I am interested in VC++ manju

          N Offline
          N Offline
          Naveen
          wrote on last edited by
          #6

          manju#123 wrote:

          ofstream TestFile("E:\\Test.txt",ios::app);

          Since your writing a wide char text, either you have to use wofstream instead of ofstream or Covert the elementValue[i] to mutibyte using sprintf() or WideCharToMultiByte() before writing..

          manju#123 wrote:

          I am Mnaju

          Correct your signature :)

          nave [OpenedFileFinder]

          C 1 Reply Last reply
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          • M manju 123

            CPallini wrote:

            What's the input, instead?

            Actually i will get the sharepoint folders which are stored in structures in the dll... Actually i must get ///////////////////////////// http://sharepoint/Docs http://sharepoint/News http://sharepoint/Reports http://sharepoint/SearchCenter http://sharepoint/SiteDirectory ///////////////////////////// when i put printf i.e printf("%d. is %S \n", i+1, elementValue[i]); I am getting the value for elementValue[i]

            Hi.. I am Mnaju.I have Completed my B.E Computers Science.Lokking for a job.I am interested in VC++ manju

            C Offline
            C Offline
            CPallini
            wrote on last edited by
            #7

            If you need to write a UNICODE file the code I provided works fine but you have to put the proper BOM at the very start of the file, for instance

            TCHAR * szIn = _T("http://sharepoint/Docs");
            ofstream of("foo.txt", ios::out);
            #ifdef _UNICODE
            TCHAR BOM = 0xFEFF;
            of.write((const char *) &BOM, sizeof(TCHAR));
            #endif
            of.write((const char *) szIn, _tcslen(szIn)* sizeof(TCHAR));
            of.close();

            On the other hand, if you need to write a ANSI file then follow Naveen suggestion: use wofstream instead of ofstream.

            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.
            This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
            [My articles]

            R 1 Reply Last reply
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            • N Naveen

              manju#123 wrote:

              ofstream TestFile("E:\\Test.txt",ios::app);

              Since your writing a wide char text, either you have to use wofstream instead of ofstream or Covert the elementValue[i] to mutibyte using sprintf() or WideCharToMultiByte() before writing..

              manju#123 wrote:

              I am Mnaju

              Correct your signature :)

              nave [OpenedFileFinder]

              C Offline
              C Offline
              CPallini
              wrote on last edited by
              #8

              Naveen wrote:

              manju#123 wrote: I am Mnaju Correct your signature [Smile] nave [OpenedFileFinder]

              Also 'lokking' should be fixed in the signature. :-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.
              This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
              [My articles]

              N 1 Reply Last reply
              0
              • C CPallini

                Naveen wrote:

                manju#123 wrote: I am Mnaju Correct your signature [Smile] nave [OpenedFileFinder]

                Also 'lokking' should be fixed in the signature. :-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.
                This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
                [My articles]

                N Offline
                N Offline
                Naveen
                wrote on last edited by
                #9

                ops. I didn't notice :laugh:

                nave [OpenedFileFinder]

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                • C CPallini

                  If you need to write a UNICODE file the code I provided works fine but you have to put the proper BOM at the very start of the file, for instance

                  TCHAR * szIn = _T("http://sharepoint/Docs");
                  ofstream of("foo.txt", ios::out);
                  #ifdef _UNICODE
                  TCHAR BOM = 0xFEFF;
                  of.write((const char *) &BOM, sizeof(TCHAR));
                  #endif
                  of.write((const char *) szIn, _tcslen(szIn)* sizeof(TCHAR));
                  of.close();

                  On the other hand, if you need to write a ANSI file then follow Naveen suggestion: use wofstream instead of ofstream.

                  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.
                  This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
                  [My articles]

                  R Offline
                  R Offline
                  Rajesh R Subramanian
                  wrote on last edited by
                  #10

                  :suss:

                  Please leave us our small pleasures, they are small, but they are ours! - Mycroft Holmes ^ .·´¯`·->Rajesh<-·´¯`·. Microsoft MVP - Visual C++[^]

                  C 1 Reply Last reply
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                  • R Rajesh R Subramanian

                    :suss:

                    Please leave us our small pleasures, they are small, but they are ours! - Mycroft Holmes ^ .·´¯`·->Rajesh<-·´¯`·. Microsoft MVP - Visual C++[^]

                    C Offline
                    C Offline
                    CPallini
                    wrote on last edited by
                    #11

                    Rajesh R Subramanian wrote:

                    [Suspicious]

                    :confused:

                    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.
                    This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
                    [My articles]

                    R 1 Reply Last reply
                    0
                    • C CPallini

                      Rajesh R Subramanian wrote:

                      [Suspicious]

                      :confused:

                      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.
                      This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
                      [My articles]

                      R Offline
                      R Offline
                      Rajesh R Subramanian
                      wrote on last edited by
                      #12

                      Hint: That's just not an emoticon, it is a hyperlink, in my previous post. A post of mine is downvoted for no good reason (IMHO) in that thread. So, superhero intervention needed.

                      Please leave us our small pleasures, they are small, but they are ours! - Mycroft Holmes ^ .·´¯`·->Rajesh<-·´¯`·. Microsoft MVP - Visual C++[^]

                      C 1 Reply Last reply
                      0
                      • R Rajesh R Subramanian

                        Hint: That's just not an emoticon, it is a hyperlink, in my previous post. A post of mine is downvoted for no good reason (IMHO) in that thread. So, superhero intervention needed.

                        Please leave us our small pleasures, they are small, but they are ours! - Mycroft Holmes ^ .·´¯`·->Rajesh<-·´¯`·. Microsoft MVP - Visual C++[^]

                        C Offline
                        C Offline
                        CPallini
                        wrote on last edited by
                        #13

                        Rajesh R Subramanian wrote:

                        That's just not an emoticon, it is a hyperlink, in my previous post.

                        OMG: I'm Mr.Dumb (drugz, maybe?). :-D BTW: balanced. :)

                        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.
                        This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
                        [My articles]

                        R 1 Reply Last reply
                        0
                        • C CPallini

                          Rajesh R Subramanian wrote:

                          That's just not an emoticon, it is a hyperlink, in my previous post.

                          OMG: I'm Mr.Dumb (drugz, maybe?). :-D BTW: balanced. :)

                          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.
                          This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
                          [My articles]

                          R Offline
                          R Offline
                          Rajesh R Subramanian
                          wrote on last edited by
                          #14

                          CPallini wrote:

                          BTW: balanced.

                          Thanks, Mr.Dumb. :-D :laugh:

                          Please leave us our small pleasures, they are small, but they are ours! - Mycroft Holmes ^ .·´¯`·->Rajesh<-·´¯`·. Microsoft MVP - Visual C++[^]

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