Re: Steganography MFC program problem...

From:
 anantnigam03@rediffmail.com
Newsgroups:
microsoft.public.vc.mfc
Date:
Sat, 09 Jun 2007 14:35:54 -0700
Message-ID:
<1181424954.031282.6380@m36g2000hse.googlegroups.com>
Thanks for the reply.
That is fixed and working now. I have another final problem ...
Well i can compile the program but when i press my Hide button on
UI ...it gives me error saying "encrypted_message.steg NOT FOUND."...
well what could be the problem in this case...the code snippet is same
which i posted in my last post ..and ya ill also copy my OnHide button
code and commenting exactly where i am getting error...
Also if you ll see right at the bottom of my last code snippet there
are 2 while loops (i.e. while(message_encrypt_file)) well cursor is
jumping out from this loop. It is not getting this file....
i am bit lost here now....well exactly what m trying to do here
is ...i am trying to hide message within text file using password.
First i encrypt the message and then i place it in a text file to hide
it...

could you pls let me knw if you think of any problem here.
Thanks a lot

void CSTEGANOGRAPHYDlg::OnHide()
{
    // TODO: Add your control notification handler code here
  UpdateData();
   CProgressCtrl *Progress = new CProgressCtrl;
   Progress =
reinterpret_cast<CProgressCtrl*>(GetDlgItem(IDC_PROGRESS1));
    CEdit *kk;
    kk = reinterpret_cast<CEdit *>(GetDlgItem(IDC_STATIC575));
    //checking whether password box is empty
    CEdit *ee;
    CString Passwd;
    TCHAR str[10],str_check[10];
    ee = reinterpret_cast<CEdit *>(GetDlgItem(IDC_EDIT4));
    ee->GetWindowTextW(Passwd);
    _tcscpy_s(str,Passwd);
    if(_tcslen(str)==0)
    {
        AfxMessageBox(_T("Please Enter a Password"));
        goto end_hide;
    }
    ee=reinterpret_cast<CEdit *>(GetDlgItem(IDC_EDIT7));
    ee->GetWindowTextW(Passwd);
        _tcscpy_s(str_check,Passwd);
    if(_tcslen(str_check)==0)
    {
        AfxMessageBox(_T("Please Enter a Password"));
        goto end_hide;
    }
    if(_tcscmp(str,str_check)!=0)
    {
       AfxMessageBox(_T("Password is wrong...Please Re Enter"));
       goto end_hide;
    }

    if(m_CarrierFile==0)
    {
        hide_in_text m;
        if(m_MessageOrFile==0)//to hide message in text file
        {
            TCHAR temp_string[200];
            CString Message2;
            CEdit *pp, *ee;
            //To get the secret message
            pp = reinterpret_cast<CEdit *>(GetDlgItem(IDC_EDIT1));
            pp->GetWindowTextW(Message2);
            _tcscpy(m.message, Message2);

            //To get the password
            CString Pass;
            ee = reinterpret_cast<CEdit *>(GetDlgItem(IDC_EDIT4));
            ee->GetWindowTextW(Pass);
            _tcscpy_s(m.passwd,Pass);
            kk->SetWindowTextW(_T("Status:Encrypting..... Please wait"));
            m.message_encryption();
            m.convert_to_bits();

        //To get the carrier file
            pp = reinterpret_cast<CEdit *>(GetDlgItem(IDC_EDIT3));
            ee->GetWindowTextW(Message2);
            _tcscpy_s(temp_string,Message2);
            m.intext.open(temp_string,ios::in);

        //To save as the carrier file
            pp = reinterpret_cast<CEdit *>(GetDlgItem(IDC_EDIT5));
            pp->GetWindowTextW(Message2);
            _tcscpy_s(temp_string, Message2);
            CFile tt(_T("encrypted.steg"),CFile::modeRead);
            m.text_size=tt.GetLength();
            tt.Close();
            m.outext.open(temp_string, ios::out);
            m.get_secret_file();
            kk->SetWindowTextW(_T("Status:Hiding... Please Wait"));
            m.hide_file(Progress);
            CFile rr;
            rr.Remove(_T("encrypted_message.steg")); //ERROR->
"encrypted_message.steg NOT FOUND"
            rr.Remove(_T("message.steg"));
        }
    }

     AfxMessageBox(_T("Hiding Process Successfully Completed"));
    OnReset();
    kk->SetWindowText(_T("Status:Ready Select Task"));
    end_hide:
             ee = reinterpret_cast<CEdit *>(GetDlgItem(IDC_EDIT4));
             ee->SetWindowTextW(_T(""));
             ee = reinterpret_cast<CEdit *>(GetDlgItem(IDC_EDIT7));
             ee->SetWindowTextW(_T(""));
}

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