How to Get the List of Drives in a Computer?

To support drives on a computer, the Win32 library provides the GetLogicalDrives() function of Microsoft Window. Its syntax is:

DWORD WINAPI GetLogicalDrives(void);

When this method is called, it produces a list of all drives on the current computer. Each drive is represented by a bit in the integral returned value. Here is an example of calling this function:

void CLogicalDrives1Dlg::OnBnClickedLogicaldrivesBtn()
 { 
  wchar_t drive[512] = L"A:"; 
  unsigned int drives = GetLogicalDrives(); 
  CString strListOfDrives = L"The list of drives is ";
  if( drives == 0 ) 
      AfxMessageBox(L"There is no drive to show");
  else { 
       while(drives) 
        { 
         if( drives & 1 )
           { 
            strListOfDrives += drive;
            strListOfDrives += L", ";
           } 
         drive[0]++; drives >>= 1;
        }
     m_ListOfDrives = strListOfDrives;
     UpdateData(FALSE);
    } 
}