public static FromKnownFolderId ( System.Guid knownFolderId ) : IKnownFolder | ||
knownFolderId | System.Guid | A GUID for the requested known folder. |
Résultat | IKnownFolder |
/* * /// <summary> * /// Gets a strongly-typed read-only collection of all the registered known folders. * /// </summary> * public static ICollection<IKnownFolder> All { * get { * return GetAllFolders(); * } * } */ /* * private static ReadOnlyCollection<IKnownFolder> GetAllFolders() { * // Should this method be thread-safe?? (It'll take a while to get a list of all the * // known folders, create the managed wrapper and return the read-only collection. * * IList<IKnownFolder> foldersList = new List<IKnownFolder>(); * uint count; * IntPtr folders = IntPtr.Zero; * * try { * KnownFolderManagerClass knownFolderManager = new KnownFolderManagerClass(); * knownFolderManager.GetFolderIds(out folders, out count); * * if (count > 0 && folders != IntPtr.Zero) { * // Loop through all the KnownFolderID elements * for (int i = 0; i < count; i++) { * // Read the current pointer * IntPtr current = new IntPtr(folders.ToInt64() + (Marshal.SizeOf(typeof(Guid)) * i)); * * // Convert to Guid * Guid knownFolderID = (Guid)Marshal.PtrToStructure(current, typeof(Guid)); * * IKnownFolder kf = KnownFolderHelper.FromKnownFolderIdInternal(knownFolderID); * * // Add to our collection if it's not null (some folders might not exist on * // the system or we could have an exception that resulted in the null return * // from above method call * if (kf != null) { foldersList.Add(kf); } * } * } * } * finally { * if (folders != IntPtr.Zero) { Marshal.FreeCoTaskMem(folders); } * } * * return new ReadOnlyCollection<IKnownFolder>(foldersList); * } */ /* * /// <summary> * /// Gets a strongly-typed read-only collection of all the registered known folders. * /// </summary> * public static ReadOnlyCollection<IKnownFolder> All { * get { * // Should this method be thread-safe?? (It'll take a while to get a list of all the * // known folders, create the managed wrapper and return the read-only collection. * * IList<IKnownFolder> foldersList = new List<IKnownFolder>(); * uint count; * IntPtr folders = IntPtr.Zero; * * try { * KnownFolderManagerClass knownFolderManager = new KnownFolderManagerClass(); * knownFolderManager.GetFolderIds(out folders, out count); * * if (count > 0 && folders != IntPtr.Zero) { * // Loop through all the KnownFolderID elements * for (int i = 0; i < count; i++) { * // Read the current pointer * IntPtr current = new IntPtr(folders.ToInt64() + (Marshal.SizeOf(typeof(Guid)) * i)); * * // Convert to Guid * Guid knownFolderID = (Guid)Marshal.PtrToStructure(current, typeof(Guid)); * * IKnownFolder kf = KnownFolderHelper.FromKnownFolderIdInternal(knownFolderID); * * // Add to our collection if it's not null (some folders might not exist on * // the system or we could have an exception that resulted in the null return * // from above method call * if (kf != null) { foldersList.Add(kf); } * } * } * } * finally { * if (folders != IntPtr.Zero) { Marshal.FreeCoTaskMem(folders); } * } * * return new ReadOnlyCollection<IKnownFolder>(foldersList); * } * } */ private static IKnownFolder GetKnownFolder(Guid guid) => KnownFolderHelper.FromKnownFolderId(guid);
private static IKnownFolder GetKnownFolder(Guid guid) { return(KnownFolderHelper.FromKnownFolderId(guid)); }