void CReadSectorDlg::OnReadButton()
{
UpdateData (TRUE) ;
CFile m_Sector_file ;
char * buffer ;
if ( m_FileName_str == "")
{
MessageBox ("Please enter a file to which the read sector contents are to be stored !!");
return ;
}
m_Sector_file.Open (m_FileName_str, CFile::modeCreate | CFile