mirror of
https://github.com/Hofknecht/SystemTrayMenu.git
synced 2024-09-06 12:42:02 +12:00
91 lines
3.4 KiB
C#
91 lines
3.4 KiB
C#
// <copyright file="FolderOptions.cs" company="PlaceholderCompany">
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// Copyright (c) PlaceholderCompany. All rights reserved.
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// </copyright>
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namespace SystemTrayMenu.Utilities
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{
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using System;
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using System.IO;
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using System.Reflection;
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using System.Runtime.InteropServices;
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using Shell32;
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internal static class FolderOptions
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{
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private static bool hideHiddenEntries;
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private static bool hideSystemEntries;
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private static IShellDispatch4? iShellDispatch4;
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internal static void Initialize()
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{
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try
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{
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iShellDispatch4 = (IShellDispatch4?)Activator.CreateInstance(
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Type.GetTypeFromProgID("Shell.Application")!);
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// Using SHGetSetSettings would be much better in performance but the results are not accurate.
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// We have to go for the shell interface in order to receive the correct settings:
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// https://docs.microsoft.com/en-us/windows/win32/shell/ishelldispatch4-getsetting
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const int SSF_SHOWALLOBJECTS = 0x00000001;
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hideHiddenEntries = !(iShellDispatch4?.GetSetting(SSF_SHOWALLOBJECTS) ?? false);
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const int SSF_SHOWSUPERHIDDEN = 0x00040000;
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hideSystemEntries = !(iShellDispatch4?.GetSetting(SSF_SHOWSUPERHIDDEN) ?? false);
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}
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catch (Exception ex)
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{
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if (ex is ArgumentException ||
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ex is NotSupportedException ||
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ex is TargetInvocationException ||
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ex is MethodAccessException ||
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ex is MemberAccessException ||
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ex is InvalidComObjectException ||
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ex is MissingMethodException ||
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ex is COMException ||
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ex is TypeLoadException)
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{
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Log.Warn("Get Shell COM instance failed", ex);
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}
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else
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{
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throw;
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}
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}
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}
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internal static void ReadHiddenAttributes(string path, out bool hasHiddenFlag, out bool isDirectoryToHide)
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{
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isDirectoryToHide = false;
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hasHiddenFlag = false;
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if (path.Length >= 260)
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{
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Log.Info($"path too long (>=260):'{path}'");
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return;
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}
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try
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{
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FileAttributes attributes = File.GetAttributes(path);
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hasHiddenFlag = attributes.HasFlag(FileAttributes.Hidden);
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bool hasSystemFlag = attributes.HasFlag(
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FileAttributes.Hidden | FileAttributes.System);
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if (Properties.Settings.Default.SystemSettingsShowHiddenFiles)
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{
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if ((hideHiddenEntries && hasHiddenFlag) ||
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(hideSystemEntries && hasSystemFlag))
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{
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isDirectoryToHide = true;
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}
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}
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else if (hasHiddenFlag && Properties.Settings.Default.NeverShowHiddenFiles)
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{
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isDirectoryToHide = true;
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}
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}
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catch (Exception ex)
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{
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Log.Warn($"path:'{path}'", ex);
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}
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}
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}
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}
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