private static extern Int32 _GetFixedVolumes(out FixedVolumeInfoArray volumes, out ushort volumeCount);
 /// <summary>
 /// Gives back a list of all fixed volumes recognized by CONFIRE SHERLOCK
 /// </summary>
 /// <param name="volumes">A FixedVolumeInfo array which holds all information</param>
 /// <param name="volumeCount">The number of volumes inside the FixedVolumeInfo array.</param>
 /// <exception cref="Exception">if call was not successfull.</exception>
 public static void GetFixedVolumes(out FixedVolumeInfoArray volumes, out ushort volumeCount)
 {
     if (_GetFixedVolumes(out volumes, out volumeCount) != 0)
     {
         throw new Exception("Api error");
     }
 }