// --------------------------------------------------------------------------- -------------
// Class Name: VolumeFunctions
// Procedure Name: UnmapFolderFromDrive
// Purpose: Unmap a drive letter. We always unmp the drive, without checking the
// folder name.
// Parameters:
// - driveLetter (string) : Drive letter to be released, the the format "C:"
// - folderName (string) : Folder name that the drive is mapped to.
// --------------------------------------------------------------------------- -------------
internal static string UnmapFolderFromDrive(string driveLetter, string folderName)
{
DefineDosDevice(DDD_REMOVE_DEFINITION, driveLetter, folderName);
// Display the status of the "last" unmap we run.
string statusMessage = new Win32Exception(Marshal.GetLastWin32Error()).ToString();
return(statusMessage.Substring(statusMessage.IndexOf(":") + 1));
}
// --------------------------------------------------------------------------- -------------
// Class Name: VolumeFunctions
// Procedure Name: MapFolderToDrive
// Purpose: Map the folder to a drive letter
// Parameters:
// - driveLetter (string) : Drive letter in the format "C:" without a back slash
// - folderName (string) : Folder to map without a back slash
// --------------------------------------------------------------------------- -------------
internal static string MapFolderToDrive(string driveLetter, string folderName)
{
// Is this drive already mapped? If so, we don't remap it!
StringBuilder volumeMap = new StringBuilder(1024);
QueryDosDevice(driveLetter, volumeMap, (uint)1024);
if (volumeMap.ToString().StartsWith(MAPPED_FOLDER_INDICATOR) == true)
{
return("Volume is already mapped - map not changed");
}
// Map the folder to the drive
DefineDosDevice(0, driveLetter, folderName);
// Display a status message to the user.
string statusMessage = new Win32Exception(Marshal.GetLastWin32Error()).ToString();
return(statusMessage.Substring(statusMessage.IndexOf(":") + 1));
}