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  4. Convert BSTR to Const char*

Convert BSTR to Const char*

Scheduled Pinned Locked Moved C / C++ / MFC
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  • 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

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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
        0
        • 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]

            1 Reply Last reply
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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
              0
              • 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++[^]

                      1 Reply Last reply
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