private static string DosDeviceToDosPath(string dosDevice, string deviceReplacement)
{
if (Utils.IsNullOrWhiteSpace(dosDevice))
{
return(string.Empty);
}
foreach (string drive in Directory.EnumerateLogicalDrivesCore(false, false).Select(drv => drv.Name))
{
try
{
string path = RemoveTrailingDirectorySeparator(drive, false);
foreach (string devNt in Volume.QueryDosDevice(path).Where(dosDevice.StartsWith))
{
return(dosDevice.Replace(devNt, deviceReplacement ?? path));
}
}
catch
{
}
}
return(string.Empty);
}
private object GetDeviceInfo(int type, int mode)
{
try
{
switch (type)
{
#region Volume
// VolumeInfo properties.
case 0:
if (Utils.IsNullOrWhiteSpace(_volumeInfo.FullPath))
{
_volumeInfo.Refresh();
}
switch (mode)
{
case 0:
// IsVolume, VolumeInfo
return(_volumeInfo);
case 1:
// DriveFormat
return(_volumeInfo == null?DriveType.Unknown.ToString() : _volumeInfo.FileSystemName ?? DriveType.Unknown.ToString());
case 2:
// VolumeLabel
return(_volumeInfo == null ? string.Empty : _volumeInfo.Name ?? string.Empty);
}
break;
// Volume related.
case 1:
switch (mode)
{
case 0:
// DosDeviceName
// Do not use ?? expression here.
if (_dosDeviceName == null)
{
_dosDeviceName = Volume.QueryDosDevice(Name).FirstOrDefault();
}
return(_dosDeviceName);
}
break;
#endregion // Volume
#region Drive
// Drive related.
case 2:
switch (mode)
{
case 0:
// DriveType
// Do not use ?? expression here.
if (_driveType == null)
{
_driveType = Volume.GetDriveType(Name);
}
return(_driveType);
case 1:
// RootDirectory
// Do not use ?? expression here.
if (_rootDirectory == null)
{
_rootDirectory = new DirectoryInfo(null, Name, PathFormat.RelativePath);
}
return(_rootDirectory);
}
break;
// DiskSpaceInfo related.
case 3:
switch (mode)
{
case 0:
// AvailableFreeSpace, TotalFreeSpace, TotalSize, DiskSpaceInfo
if (!_initDsie)
{
_dsi.Refresh();
_initDsie = true;
}
break;
}
break;
#endregion // Drive
}
}
catch
{
}
return(type == 0 && mode > 0 ? string.Empty : null);
}