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1 using System;
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2 using System.ComponentModel;
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3 using System.Drawing;
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4 using System.IO;
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5
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6 namespace ShortcutKeyFinder
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7 {
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8 /// <summary>Class to perform operations on shortcut (.lnk) files</summary>
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9 class Shortcut : INotifyPropertyChanged
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10 {
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11 private bool _hasDuplicateHotkey;
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12 private Hotkey _hotkey;
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13 public event PropertyChangedEventHandler PropertyChanged;
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14
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15 /// <summary>Name of the shortcut as displayed by Windows Explorer</summary>
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16 /// <remarks>Not necessarily the same as the shortcut's filename</remarks>
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17 public string Name { get; private set; }
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18
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19 /// <summary>Full path of the shortcut file</summary>
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20 public string Path { get; private set; }
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21
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22 /// <summary>Full path of the shortcut's parent directory</summary>
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23 public string Location
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24 {
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25 get { return System.IO.Path.GetDirectoryName(Path); }
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26 }
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27
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28 /// <summary>Display name of the shortcut's parent directory</summary>
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29 /// <remarks>Gives the user a general idea of where the shortcut is located rather than the full path</remarks>
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30 public string DisplayLocation
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31 {
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32 get {
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33 return Location
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34 .Replace(Environment.GetFolderPath(Environment.SpecialFolder.StartMenu), "Start Menu")
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35 .Replace(Environment.GetFolderPath(Environment.SpecialFolder.CommonStartMenu), "Start Menu")
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36 .Replace(Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory), "Desktop")
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37 .Replace(Environment.GetFolderPath(Environment.SpecialFolder.CommonDesktopDirectory), "Desktop");
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38 }
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39
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40 }
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41
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42 /// <summary>Hotkey associated with the shortcut</summary>
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43 public Hotkey Hotkey
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44 {
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45 get { return _hotkey; }
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46 set
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47 {
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48 if (value != _hotkey)
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49 {
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50 _hotkey = value;
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51 NotifyPropertyChanged("Hotkey");
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52 }
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53 }
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54 }
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55
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56 /// <summary>Icon associated with the shortcut</summary>
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57 public Image Icon { get; private set; }
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58
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59 /// <summary>Indicates whether this shortcut's hotkey is the same as that of another shortcut</summary>
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60 /// <remarks>Always false unless set to true by some other class</remarks>
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61 public bool HasDuplicateHotkey
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62 {
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63 get { return _hasDuplicateHotkey; }
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64 set
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65 {
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66 if (value != _hasDuplicateHotkey)
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67 {
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68 _hasDuplicateHotkey = value;
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69 NotifyPropertyChanged("HasDuplicateHotkey");
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70 }
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71 }
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72 }
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73
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74 /// <summary>Indicates whether the user has permissions to modify the shortcut</summary>
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75 /// <remarks>Always false unless set to true by some other class</remarks>
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76 public bool ReadOnly { get; set; }
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77
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78 /// <summary>Constructor</summary>
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79 /// <param name="path">Full path to a shortcut (.lnk) file</param>
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80 public Shortcut(string path)
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81 {
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82 Path = path;
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83 LoadShortcutInfo();
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84 }
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85
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86 /// <summary>Implements the <see cref="INotifyPropertyChanged"/> interface</summary>
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87 private void NotifyPropertyChanged(String info)
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88 {
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89 if (PropertyChanged != null)
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90 {
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91 PropertyChanged(this, new PropertyChangedEventArgs(info));
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92 }
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93 }
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94
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95 /// <summary>Constructor</summary>
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96 private void LoadShortcutInfo()
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97 {
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98 ushort hotkey = Win32Helpers.GetShortcutHotkey(Path);
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99 if (hotkey != 0)
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100 Hotkey = new Hotkey(hotkey);
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101 FileInfo info = Win32Helpers.GetFileInfo(Path, true, true);
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102 if (info != null)
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103 {
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104 Name = info.DisplayName;
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105 Icon = info.Icon.ToBitmap();
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106 }
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107 }
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108
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109 /// <summary>Shows the Windows Explorer properties window for the shortcut</summary>
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110 /// <param name="parentWindow">Optional handle to a parent window for use when displaying error messages</param>
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111 public void ShowExplorerPropertiesWindow(IntPtr parentWindow = default(IntPtr))
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112 {
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113 Win32Helpers.ShowFilePropertiesWindow(Path, parentWindow);
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114 }
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115
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116 /// <summary>Writes the shortcut data to disk</summary>
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117 public void Save()
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118 {
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119 if (!Win32Helpers.SetShortcutHotkey(Path, Hotkey != null ? Hotkey.RawHotkey : (ushort)0))
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120 throw new UnauthorizedAccessException();
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121 }
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122
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123 /// <summary>Determine whether two shortcuts are the same file</summary>
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124 public override bool Equals(object obj)
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125 {
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126 Shortcut shortcut = obj as Shortcut;
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127 return shortcut != null && shortcut.Path == Path;
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128 }
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129
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130 public override int GetHashCode()
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131 {
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132 return Path.GetHashCode();
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133 }
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134 }
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135 }
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