C / C++ / MFC

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STORAGE_MEDIA_TYPE GetDriveType(TCHAR A_chletter)<br />
{<br />
   DISK_GEOMETRY Geom[20];<br />
   DEVICE_MEDIA_INFO dinfo[20];<br />
   DWORD cb;            <br />
   GET_MEDIA_TYPES gmedia[20];<br />
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   ZeroMemory(Geom, sizeof(Geom));<br />
   ZeroMemory(dinfo, sizeof(dinfo));<br />
   ZeroMemory(gmedia, sizeof(gmedia));<br />
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   HANDLE hVolume = NULL;<br />
   CString drive_argument;<br />
   drive_argument.Format(_T("\\\\.\\%c:"), A_chletter);<br />
   <br />
   //wsprintf(szVolumeName, szVolumeFormat, cDriveLetter);       <br />
   hVolume = CreateFile(   (TCHAR*)(LPCTSTR)drive_argument,<br />
                           GENERIC_READ,<br />
                           FILE_SHARE_READ | FILE_SHARE_WRITE,<br />
                           NULL,<br />
                           OPEN_EXISTING,<br />
                           0,<br />
                           NULL );<br />
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   if(DeviceIoControl (hVolume, IOCTL_STORAGE_GET_MEDIA_TYPES_EX, 0, 0, <br />
                                 gmedia, sizeof(gmedia), &cb, 0))<br />
   {<br />
      UINT MediaCharacteristics = gmedia[0].MediaInfo[0].DeviceSpecific.DiskInfo.MediaCharacteristics;<br />
      MediaCharacteristics = MediaCharacteristics;<br />
       CloseHandle(hVolume);<br />
      if(gmedia[0].DeviceType == FILE_DEVICE_DVD)//FILE_DEVICE_CD_ROM<br />
         AfxMessageBox("found dvd!");  <br />
      return (STORAGE_MEDIA_TYPE)(gmedia[0].MediaInfo[0].DeviceSpecific.DiskInfo.MediaType);<br />
   }<br />
   CloseHandle(hVolume);<br />
   return (STORAGE_MEDIA_TYPE)Unknown;<br />
}<br />
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