saving text in a file?

[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

[Cedric Moonen]

If you use CArchive, maybe that's normal... In fact, I never used CArchive for saving data but maybe it adds its own data before your data. Try to use CFile instead: char* szText = "Your string To Save"; CFile* pFile = fopen("YourFile.txt","w"); fwrite(szText,strlen(szText),1,pFile); fclose(pFile);

[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

[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<

[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

[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

[Cedric Moonen]

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

[mpallavi]

ya fine.. thanx Eli .. pal

[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?

[Cedric Moonen]

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

[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.

[Anonymous]

I using VC++ MFC.

[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.

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

[David Crow]

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.

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

[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

[David Crow]

Insert a CR and/or LF character first.

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