private void btnOK_Click(object sender, EventArgs e)
{
var driveLetter = string.IsNullOrEmpty(cmbDriveLetter.Text) ? "" : cmbDriveLetter.Text + "\\";
using (var frm = new ServiceWaitForm("Changing drive letter",
delegate() {
var res = PipeClient.ChangeDriveLetter(this.Volume.VolumeName, driveLetter);
if (res.IsError)
{
throw new InvalidOperationException(res.Message);
}
})) {
frm.ShowDialog(this);
}
}
/// <summary>
/// Change the drive letter of an attached VHD.
/// <summary>
public int ChangeDriveLetter(string[] args)
{
// Init and parameter checks
if (args.Length != 2)
{
string err = "Changing drive letter failed. Wrong number of arguments.\n";
err += "Usage: VhdAttach -ChangeLetter VHDFilename Driveletter:";
showError(err);
return(1);
}
string fileName = args[0];
if (!File.Exists(fileName))
{
string err = "Changing drive letter failed. File not found: " + fileName + "\n";
err += "Usage: VhdAttach -ChangeLetter VHDFilename Driveletter:";
showError(err);
return(1);
}
string driveLetterRaw = args[1];
if (driveLetterRaw.Length > 3 || (driveLetterRaw.Length == 3 && driveLetterRaw.Substring(1, 2) != ":\\") || (driveLetterRaw.Length == 2 && driveLetterRaw.Substring(1, 1) != ":"))
{
string err = "Changing drive letter failed. Drive Letter parameter seems to be invalid.\n";
err += "Usage: VhdAttach -ChangeLetter VHDFilename Driveletter:";
showError(err);
return(1);
}
string allowedLetters = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
string driveLetter1 = args[1].Substring(0, 1);
string driveLetter2 = driveLetter1 + ":";
if (allowedLetters.IndexOf(driveLetter1) == -1)
{
string err = "Changing drive letter failed. Drive Letter parameter seems to be invalid.\n";
err += "Usage: VhdAttach -ChangeLetter VHDFilename Driveletter:";
showError(err);
return(1);
}
// Test-Code, please ignore
// PipeClient.Attach(fileName, false, false);
// PipeClient.Detach(fileName);
// The actual drive letter operation begins here
string attachedDevice = null;
try {
using (var document = new Medo.IO.VirtualDisk(fileName)) {
document.Open(Medo.IO.VirtualDiskAccessMask.GetInfo);
attachedDevice = document.GetAttachedPath();
}
} catch {
string err = "Changing Drive letter failed. Could not open device.\n";
err += "Possible reasons include:\n";
err += "The specified file might not be attached or maybe isn't an VHD file.";
showError(err);
return(1);
}
if (attachedDevice != null)
{
var volumes = new List <Volume>(Volume.GetVolumesOnPhysicalDrive(attachedDevice));
var availableVolumes = new List <Volume>();
if (volumes != null && volumes.Count > 0)
{
string oldLetter2 = volumes[0].DriveLetter2;
PipeResponse res = PipeClient.ChangeDriveLetter(volumes[0].VolumeName, driveLetter2);
if (res.IsError == true)
{
PipeClient.ChangeDriveLetter(volumes[0].VolumeName, oldLetter2);
string err = "Changing drive letter failed. Drive letter possibly in use.";
showError(err);
return(1);
}
}
}
return(0);
}