Introduce application context
This commit is contained in:
Luis von der Eltz
+1
-21
@@ -1,12 +1,9 @@
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using System;
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using System.Diagnostics;
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using System.IO;
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using System.Runtime.InteropServices;
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using System.Threading.Tasks;
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using DesktopNotifications;
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using DesktopNotifications.FreeDesktop;
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using DesktopNotifications.Windows;
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using Example.Win32;
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namespace Example
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{
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@@ -25,24 +22,7 @@ namespace Example
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if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
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{
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const string AppName = "DesktopNotificationsExample";
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SetCurrentProcessExplicitAppUserModelID(AppName);
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using var shortcut = new ShellLink
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{
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TargetPath = Process.GetCurrentProcess().MainModule.FileName,
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Arguments = string.Empty,
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AppUserModelID = AppName
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};
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var appData = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData);
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var startMenuPath = Path.Combine(appData, @"Microsoft\Windows\Start Menu\Programs");
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var shortcutFile = Path.Combine(startMenuPath, $"{AppName}.lnk");
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shortcut.Save(shortcutFile);
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return new WindowsNotificationManager(AppName);
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return new WindowsNotificationManager();
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}
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throw new PlatformNotSupportedException();
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@@ -1,449 +0,0 @@
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using System;
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using System.Diagnostics;
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using System.IO;
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using System.Runtime.InteropServices;
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using System.Runtime.InteropServices.ComTypes;
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using System.Text;
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namespace Example.Win32
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{
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// Modified from http://smdn.jp/programming/tips/createlnk/
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// Originally from http://www.vbaccelerator.com/home/NET/Code/Libraries/Shell_Projects
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// /Creating_and_Modifying_Shortcuts/article.asp
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// Partly based on Sending toast notifications from desktop apps sample
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public class ShellLink : IDisposable
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{
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#region Win32 and COM
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// IShellLink Interface
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[ComImport]
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[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
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[Guid("000214F9-0000-0000-C000-000000000046")]
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private interface IShellLinkW
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{
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uint GetPath([Out] [MarshalAs(UnmanagedType.LPWStr)]
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StringBuilder pszFile,
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int cchMaxPath, ref WIN32_FIND_DATAW pfd, uint fFlags);
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uint GetIDList(out IntPtr ppidl);
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uint SetIDList(IntPtr pidl);
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uint GetDescription([Out] [MarshalAs(UnmanagedType.LPWStr)]
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StringBuilder pszName,
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int cchMaxName);
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uint SetDescription([MarshalAs(UnmanagedType.LPWStr)] string pszName);
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uint GetWorkingDirectory([Out] [MarshalAs(UnmanagedType.LPWStr)]
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StringBuilder pszDir,
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int cchMaxPath);
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uint SetWorkingDirectory([MarshalAs(UnmanagedType.LPWStr)] string pszDir);
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uint GetArguments([Out] [MarshalAs(UnmanagedType.LPWStr)]
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StringBuilder pszArgs,
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int cchMaxPath);
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uint SetArguments([MarshalAs(UnmanagedType.LPWStr)] string pszArgs);
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uint GetHotKey(out ushort pwHotkey);
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uint SetHotKey(ushort wHotKey);
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uint GetShowCmd(out int piShowCmd);
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uint SetShowCmd(int iShowCmd);
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uint GetIconLocation([Out] [MarshalAs(UnmanagedType.LPWStr)]
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StringBuilder pszIconPath,
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int cchIconPath, out int piIcon);
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uint SetIconLocation([MarshalAs(UnmanagedType.LPWStr)] string pszIconPath, int iIcon);
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uint SetRelativePath([MarshalAs(UnmanagedType.LPWStr)] string pszPathRel,
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uint dwReserved);
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uint Resolve(IntPtr hwnd, uint fFlags);
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uint SetPath([MarshalAs(UnmanagedType.LPWStr)] string pszFile);
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}
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// ShellLink CoClass (ShellLink object)
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[ComImport]
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[ClassInterface(ClassInterfaceType.None)]
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[Guid("00021401-0000-0000-C000-000000000046")]
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private class CShellLink
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{
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}
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// WIN32_FIND_DATAW Structure
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[StructLayout(LayoutKind.Sequential, Pack = 4, CharSet = CharSet.Unicode)]
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private struct WIN32_FIND_DATAW
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{
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public readonly uint dwFileAttributes;
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public readonly FILETIME ftCreationTime;
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public readonly FILETIME ftLastAccessTime;
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public readonly FILETIME ftLastWriteTime;
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public readonly uint nFileSizeHigh;
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public readonly uint nFileSizeLow;
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public readonly uint dwReserved0;
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public readonly uint dwReserved1;
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = MAX_PATH)]
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public readonly string cFileName;
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 14)]
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public readonly string cAlternateFileName;
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}
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// IPropertyStore Interface
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[ComImport]
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[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
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[Guid("886D8EEB-8CF2-4446-8D02-CDBA1DBDCF99")]
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private interface IPropertyStore
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{
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uint GetCount([Out] out uint cProps);
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uint GetAt([In] uint iProp, out PropertyKey pkey);
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uint GetValue([In] ref PropertyKey key, [Out] PropVariant pv);
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uint SetValue([In] ref PropertyKey key, [In] PropVariant pv);
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uint Commit();
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}
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// PropertyKey Structure
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// Narrowed down from PropertyKey.cs of Windows API Code Pack 1.1
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[StructLayout(LayoutKind.Sequential, Pack = 4)]
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private struct PropertyKey
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{
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#region Fields
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#endregion
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#region Public Properties
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public Guid FormatId { get; }
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public int PropertyId { get; }
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#endregion
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#region Constructor
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public PropertyKey(Guid formatId, int propertyId)
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{
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FormatId = formatId;
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PropertyId = propertyId;
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}
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public PropertyKey(string formatId, int propertyId)
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{
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FormatId = new Guid(formatId);
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PropertyId = propertyId;
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}
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#endregion
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}
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// PropVariant Class (only for string value)
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// Narrowed down from PropVariant.cs of Windows API Code Pack 1.1
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// Originally from http://blogs.msdn.com/b/adamroot/archive/2008/04/11
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// /interop-with-propvariants-in-net.aspx
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[StructLayout(LayoutKind.Explicit)]
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private sealed class PropVariant : IDisposable
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{
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#region Fields
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[FieldOffset(0)] private ushort valueType; // Value type
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// [FieldOffset(2)]
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// ushort wReserved1; // Reserved field
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// [FieldOffset(4)]
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// ushort wReserved2; // Reserved field
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// [FieldOffset(6)]
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// ushort wReserved3; // Reserved field
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[FieldOffset(8)] private readonly IntPtr ptr; // Value
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#endregion
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#region Public Properties
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// Value type (System.Runtime.InteropServices.VarEnum)
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public VarEnum VarType
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{
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get => (VarEnum) valueType;
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set => valueType = (ushort) value;
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}
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// Whether value is empty or null
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public bool IsNullOrEmpty =>
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valueType == (ushort) VarEnum.VT_EMPTY ||
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valueType == (ushort) VarEnum.VT_NULL;
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// Value (only for string value)
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public string? Value => Marshal.PtrToStringUni(ptr);
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#endregion
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#region Constructor
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public PropVariant()
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{
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}
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// Construct with string value
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public PropVariant(string value)
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{
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if (value == null)
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{
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throw new ArgumentException("Failed to set value.");
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}
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valueType = (ushort) VarEnum.VT_LPWSTR;
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ptr = Marshal.StringToCoTaskMemUni(value);
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}
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#endregion
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#region Destructor
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~PropVariant()
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{
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Dispose();
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}
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public void Dispose()
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{
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PropVariantClear(this);
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GC.SuppressFinalize(this);
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}
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#endregion
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}
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[DllImport("Ole32.dll", PreserveSig = false)]
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private static extern void PropVariantClear([In] [Out] PropVariant pvar);
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#endregion
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#region Fields
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private IShellLinkW? shellLinkW;
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// Name = System.AppUserModel.ID
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// ShellPKey = PKEY_AppUserModel_ID
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// FormatID = 9F4C2855-9F79-4B39-A8D0-E1D42DE1D5F3
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// PropID = 5
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// Type = String (VT_LPWSTR)
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private readonly PropertyKey AppUserModelIDKey =
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new PropertyKey("{9F4C2855-9F79-4B39-A8D0-E1D42DE1D5F3}", 5);
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private const int MAX_PATH = 260;
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private const int INFOTIPSIZE = 1024;
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private const int STGM_READ = 0x00000000; // STGM constants
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private const uint SLGP_UNCPRIORITY = 0x0002; // SLGP flags
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#endregion
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#region Private Properties (Interfaces)
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private IPersistFile PersistFile
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{
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get
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{
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if (!(shellLinkW is IPersistFile persistFile))
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{
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throw new COMException("Failed to create IPersistFile.");
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}
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return persistFile;
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}
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}
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private IPropertyStore PropertyStore
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{
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get
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{
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if (!(shellLinkW is IPropertyStore PropertyStore))
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{
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throw new COMException("Failed to create IPropertyStore.");
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}
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return PropertyStore;
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}
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}
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#endregion
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#region Public Properties (Minimal)
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// Path of loaded shortcut file
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public string ShortcutFile
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{
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get
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{
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string shortcutFile;
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PersistFile.GetCurFile(out shortcutFile);
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return shortcutFile;
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}
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}
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// Path of target file
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public string TargetPath
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{
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get
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{
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// No limitation to length of buffer string in the case of Unicode though.
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StringBuilder targetPath = new StringBuilder(MAX_PATH);
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var data = new WIN32_FIND_DATAW();
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VerifySucceeded(shellLinkW!.GetPath(targetPath, targetPath.Capacity, ref data,
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SLGP_UNCPRIORITY));
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return targetPath.ToString();
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}
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set => VerifySucceeded(shellLinkW!.SetPath(value));
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}
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public string Arguments
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{
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get
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{
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// No limitation to length of buffer string in the case of Unicode though.
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StringBuilder arguments = new StringBuilder(INFOTIPSIZE);
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VerifySucceeded(shellLinkW!.GetArguments(arguments, arguments.Capacity));
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return arguments.ToString();
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}
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set => VerifySucceeded(shellLinkW!.SetArguments(value));
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}
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// AppUserModelID to be used for Windows 7 or later.
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public string AppUserModelID
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{
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get
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{
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using (PropVariant pv = new PropVariant())
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{
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VerifySucceeded(PropertyStore.GetValue(AppUserModelIDKey, pv));
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if (pv.Value == null)
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{
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return "Null";
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}
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return pv.Value;
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}
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}
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set
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{
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using (PropVariant pv = new PropVariant(value))
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{
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VerifySucceeded(PropertyStore.SetValue(AppUserModelIDKey, pv));
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VerifySucceeded(PropertyStore.Commit());
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}
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}
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}
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#endregion
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#region Constructor
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public ShellLink()
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: this(null)
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{
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}
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// Construct with loading shortcut file.
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public ShellLink(string? file)
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{
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try
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{
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shellLinkW = (IShellLinkW) new CShellLink();
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}
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catch
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{
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throw new COMException("Failed to create ShellLink object.");
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}
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if (file != null)
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{
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Load(file);
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}
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}
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#endregion
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#region Destructor
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~ShellLink()
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{
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Dispose(false);
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}
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public void Dispose()
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{
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Dispose(true);
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GC.SuppressFinalize(this);
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}
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protected virtual void Dispose(bool disposing)
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{
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if (shellLinkW != null)
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{
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// Release all references.
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Marshal.FinalReleaseComObject(shellLinkW);
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shellLinkW = null;
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}
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}
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#endregion
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#region Methods
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// Save shortcut file.
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public void Save()
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{
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string file = ShortcutFile;
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if (file == null)
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{
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throw new InvalidOperationException("File name is not given.");
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}
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Save(file);
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}
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public void Save(string file)
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{
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if (file == null)
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{
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throw new ArgumentNullException(nameof(file));
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}
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PersistFile.Save(file, true);
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}
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// Load shortcut file.
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public void Load(string file)
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{
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if (!File.Exists(file))
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{
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throw new FileNotFoundException("File is not found.", file);
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}
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PersistFile.Load(file, STGM_READ);
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}
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// Verify if operation succeeded.
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public static void VerifySucceeded(uint hresult)
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{
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if (hresult > 1)
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{
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throw new InvalidOperationException("Failed with HRESULT: " +
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hresult.ToString("X"));
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}
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}
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#endregion
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}
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}
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Block a user