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  4. saving text in a file?

saving text in a file?

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  • E eli15021979

    try this :

    FILE *file;
    char *FileName = "C:\\TestFile.txt";
    char *string_to_save = "this is a test";

    file = fopen(FileName,"w");
    if(!file)
    {
    AfxMessageBox("Unable to open the specified file");
    return;
    }

    fputs(string_to_save,file);
    fputs("\n",file);
    fclose(file)
    return;

    regards, Eli

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    mpallavi
    wrote on last edited by
    #5

    hey friends .. i did it.. it was simple ................. CFile flCPhone; flCPhone.Open(FileDlg.GetFileName(), CFile::modeCreate | CFile::modeWrite); int len; len=strlen(m_strInput); flCPhone.Write(m_strInput,len); ..................... thanx for showing me the write track.. i was simply running behind CArchive.. (A beginner in vc++.. getting into it..) thanx pal

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    • M mpallavi

      hey friends .. i did it.. it was simple ................. CFile flCPhone; flCPhone.Open(FileDlg.GetFileName(), CFile::modeCreate | CFile::modeWrite); int len; len=strlen(m_strInput); flCPhone.Write(m_strInput,len); ..................... thanx for showing me the write track.. i was simply running behind CArchive.. (A beginner in vc++.. getting into it..) thanx pal

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      eli15021979
      wrote on last edited by
      #6

      if you allow the user to choose the file name and position with File dialog, in your flCPhone.open() use FileDlg.GetPathName() instead FileDlg.GetFileName(). regards, Eli

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      • M mpallavi

        Hi cedric i am giving here my code: .......................... CFile flCPhone; CStdioFile fl; char strFilter[] = { "Text Files (*.txt)|*.txt|" }; CFileDialog FileDlg(FALSE, ".txt", NULL, 0, strFilter); if( FileDlg.DoModal() == IDOK ) { if( flCPhone.Open(FileDlg.GetFileName(), CFile::modeCreate | CFile::modeWrite) == FALSE ) { return;} CArchive ar(&flCPhone, CArchive::store); ar<

        C Offline
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        Cedric Moonen
        wrote on last edited by
        #7

        Ouch... Sorry, I have mixed CFile with FILE* :~ But I think your question has already been answered ;)

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        • E eli15021979

          if you allow the user to choose the file name and position with File dialog, in your flCPhone.open() use FileDlg.GetPathName() instead FileDlg.GetFileName(). regards, Eli

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          M Offline
          mpallavi
          wrote on last edited by
          #8

          ya fine.. thanx Eli .. pal

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          • C Cedric Moonen

            Ouch... Sorry, I have mixed CFile with FILE* :~ But I think your question has already been answered ;)

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            mpallavi
            wrote on last edited by
            #9

            Hi cedric its ok.. :) I wasn't using the member functions of CFile.. There is no function for appending text to a file..in CFile (..I suppose).. How do i go about it?

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            • M mpallavi

              Hi cedric its ok.. :) I wasn't using the member functions of CFile.. There is no function for appending text to a file..in CFile (..I suppose).. How do i go about it?

              C Offline
              C Offline
              Cedric Moonen
              wrote on last edited by
              #10

              Then you can use FILE* and open it in appending mode ("-a"). Take a look at fopen in the doc: FILE* pFile = fopen("YourFile.txt","a"); fwrite(.....); // This will append text at the end of the file

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              • M mpallavi

                ya fine.. thanx Eli .. pal

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                Anonymous
                wrote on last edited by
                #11

                i want get HDD serial number, and encoding it to binary number, and write this binary number into file application (example: myapplication.exe) ? i can't completed, help me ! Regards.

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                • A Anonymous

                  i want get HDD serial number, and encoding it to binary number, and write this binary number into file application (example: myapplication.exe) ? i can't completed, help me ! Regards.

                  A Offline
                  A Offline
                  Anonymous
                  wrote on last edited by
                  #12

                  I using VC++ MFC.

                  1 Reply Last reply
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                  • M mpallavi

                    Hi cedric its ok.. :) I wasn't using the member functions of CFile.. There is no function for appending text to a file..in CFile (..I suppose).. How do i go about it?

                    D Offline
                    D Offline
                    David Crow
                    wrote on last edited by
                    #13

                    mpallavi wrote: There is no function for appending text to a file..in CFile (..I suppose).. Sure there is. Just go to the end of the file before writing to it. Remember to use CFile::modeNoTruncate when opening the file.


                    "Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

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                    • M mpallavi

                      hi.. how do we save user entered text in a file.. i am using common dialog box and allowing the user to specify the file name and the location.. I used CArchive.. The first character in the saved file is always a garbage value.. Why? regards mpallavi

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                      D Offline
                      David Crow
                      wrote on last edited by
                      #14

                      mpallavi wrote: The first character in the saved file is always a garbage value It is the number of bytes in the CString object that were written to the archive. You should be able to verify this. Take a look at CArchive's << operator. If the length of the CString object is >= 255 and < 0xfffe, an extra 0xff is written to the archive followed by the length of the CString object.


                      "Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

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                      • D David Crow

                        mpallavi wrote: There is no function for appending text to a file..in CFile (..I suppose).. Sure there is. Just go to the end of the file before writing to it. Remember to use CFile::modeNoTruncate when opening the file.


                        "Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

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                        mpallavi
                        wrote on last edited by
                        #15

                        hi david.. thanx I could append text to a already existing file.. I want the newly entered text to appear on a new line.. I used CFile::seektoend().. how to take the pointer to new line? .. regards pal

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                        • M mpallavi

                          hi david.. thanx I could append text to a already existing file.. I want the newly entered text to appear on a new line.. I used CFile::seektoend().. how to take the pointer to new line? .. regards pal

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                          David Crow
                          wrote on last edited by
                          #16

                          Insert a CR and/or LF character first.


                          "Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

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