internal static Guid GetUUID(this KnownFolderType FolderType)
{
var type = typeof(KnownFolderType);
var memInfo = type.GetMember($"{FolderType}");
var attributes = memInfo[0].GetCustomAttributes(typeof(UUIDAttribute), false);
return(((UUIDAttribute)attributes[0]).UUID);
}
// ---- METHODS (INTERNAL) -------------------------------------------------------------------------------------
/// <summary>
/// Gets the <see cref="Guid"/> with which the <see cref="KnownFolderType"/> enumeration member has been
/// decorated.
/// </summary>
/// <param name="value">The decorated <see cref="KnownFolderType"/> enumeration member.</param>
/// <returns>The <see cref="Guid"/> of the <see cref="KnownFolderType"/>.</returns>
internal static Guid GetGuid(this KnownFolderType value)
{
FieldInfo member = typeof(KnownFolderType).GetField(value.ToString());
object[] attributes = member.GetCustomAttributes(typeof(KnownFolderGuidAttribute), false);
KnownFolderGuidAttribute guidAttribute = (KnownFolderGuidAttribute)attributes[0];
return(guidAttribute.Guid);
}
// ---- METHODS (INTERNAL) -------------------------------------------------------------------------------------
/// <summary>
/// Gets the <see cref="Guid"/> with which the <see cref="KnownFolderType"/> enumeration member has been
/// decorated.
/// </summary>
/// <param name="Value">The decorated <see cref="KnownFolderType"/> enumeration member.</param>
/// <returns>The <see cref="Guid"/> of the <see cref="KnownFolderType"/>.</returns>
internal static Guid GetGuid(this KnownFolderType Value)
{
FieldInfo Member = typeof(KnownFolderType).GetField(Value.ToString());
object[] Attributes = Member.GetCustomAttributes(typeof(KnownFolderGuidAttribute), false);
KnownFolderGuidAttribute GuidAttribute = (KnownFolderGuidAttribute)Attributes[0];
return(GuidAttribute.Guid);
}
// ---- METHODS (PRIVATE) --------------------------------------------------------------------------------------
private static KnownFolder GetInstance(KnownFolderType Type)
{
// Check if the caching directory exists yet.
if (_knownFolderInstances == null)
{
_knownFolderInstances = new Dictionary <KnownFolderType, KnownFolder>();
}
// Get a KnownFolder instance out of the cache dictionary or create it when not cached yet.
if (!_knownFolderInstances.TryGetValue(Type, out KnownFolder KnownFolder))
{
KnownFolder = new KnownFolder(Type);
_knownFolderInstances.Add(Type, KnownFolder);
}
return(KnownFolder);
}
public KnownFolder(KnownFolderType FolderType)
{
this.FolderType = FolderType;
//get the current user's identity
var identity = WindowsIdentity.GetCurrent();
//set the flags for the path
var flags = KnownFolderFlag.DefaultPath | KnownFolderFlag.DontVerify;
IntPtr path;
var res = MarshalledKnownFolders.SHGetKnownFolderPath(FolderType.GetUUID(), (UInt32)flags, identity.Token, out path);
if (res == HRESULT.OK)
{
//load the path
Directory = new DirectoryInfo(Marshal.PtrToStringUni(path));
}
}
private static KnownFolder GetInstance(KnownFolderType type)
{
// Check if the caching directory exists yet.
if (_knownFolderInstances == null)
{
_knownFolderInstances = new ConcurrentDictionary <KnownFolderType, KnownFolder>();
}
// Get a KnownFolder instance out of the cache dictionary or create it when not cached yet.
if (!_knownFolderInstances.TryGetValue(type, out KnownFolder knownFolder))
{
knownFolder = new KnownFolder(type);
if (_knownFolderInstances.TryAdd(type, knownFolder))
{
return(knownFolder);
}
return(_knownFolderInstances[type]);
}
return(knownFolder);
}
/// <summary>
/// Initializes a new instance of the <see cref="KnownFolder"/> class for the folder of the given type. It
/// provides the values for the given impersonated user.
/// </summary>
/// <param name="type">The <see cref="KnownFolderType"/> of the known folder to represent.</param>
/// <param name="identity">The <see cref="WindowsIdentity"/> of the impersonated user which values will be
/// provided.</param>
public KnownFolder(KnownFolderType type, WindowsIdentity identity)
{
Type = type;
Identity = identity;
}
// ---- CONSTRUCTORS & DESTRUCTOR ------------------------------------------------------------------------------
/// <summary>
/// Initializes a new instance of the <see cref="KnownFolder"/> class for the folder of the given type. It
/// provides the values for the current user.
/// </summary>
/// <param name="type">The <see cref="KnownFolderType"/> of the known folder to represent.</param>
public KnownFolder(KnownFolderType type) : this(type, WindowsIdentity.GetCurrent())
{
}
/// <summary>
/// Initializes a new instance of the <see cref="KnownFolder"/> class for the folder of the given type. It
/// provides the values for the given impersonated user.
/// </summary>
/// <param name="Type">The <see cref="KnownFolderType"/> of the known folder to represent.</param>
/// <param name="Identity">The <see cref="WindowsIdentity"/> of the impersonated user which values will be
/// provided.</param>
public KnownFolder(KnownFolderType Type, WindowsIdentity Identity)
{
this.Type = Type;
this.Identity = Identity;
}
/// <summary>
/// Initializes a new instance of the <see cref="KnownFolder"/> class for the folder of the given type. It
/// provides the values for the given impersonated user.
/// </summary>
/// <param name="type">The <see cref="KnownFolderType"/> of the known folder to represent.</param>
/// <param name="identity">The <see cref="WindowsIdentity"/> of the impersonated user which values will be
/// provided.</param>
internal KnownFolder(KnownFolderType type, WindowsIdentity identity)
{
Type = type;
Identity = identity;
}
/// <summary>Creates a <see cref="DirectoryInfo"/> from a given <see cref="KnownFolderType"/> by constructing a new <see cref="KnownFolder"/>. </summary> /// <param name="KnownFolderType">The known folder type.</param> /// <returns><see cref="DirectoryInfo"/></returns> public static DirectoryInfo GetDirectoryInfo(this KnownFolderType KnownFolderType) => new KnownFolder(KnownFolderType).GetDirectoryInfo();