186 lines
9.3 KiB
C#
186 lines
9.3 KiB
C#
using System;
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using System.IO;
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using System.Runtime.InteropServices;
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using System.Text;
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namespace MediaBrowser.Controller.IO
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{
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/// <summary>
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/// Contains helpers to interact with shortcut files (.lnk)
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/// </summary>
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public static class Shortcut
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{
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#region Signitures were imported from http://pinvoke.net
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[Flags()]
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enum SLGP_FLAGS
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{
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/// <summary>Retrieves the standard short (8.3 format) file name</summary>
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SLGP_SHORTPATH = 0x1,
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/// <summary>Retrieves the Universal Naming Convention (UNC) path name of the file</summary>
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SLGP_UNCPRIORITY = 0x2,
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/// <summary>Retrieves the raw path name. A raw path is something that might not exist and may include environment variables that need to be expanded</summary>
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SLGP_RAWPATH = 0x4
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}
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[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
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struct WIN32_FIND_DATAW
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{
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public uint dwFileAttributes;
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public long ftCreationTime;
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public long ftLastAccessTime;
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public long ftLastWriteTime;
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public uint nFileSizeHigh;
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public uint nFileSizeLow;
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public uint dwReserved0;
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public uint dwReserved1;
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)]
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public string cFileName;
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 14)]
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public string cAlternateFileName;
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}
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[Flags()]
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enum SLR_FLAGS
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{
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/// <summary>
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/// Do not display a dialog box if the link cannot be resolved. When SLR_NO_UI is set,
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/// the high-order word of fFlags can be set to a time-out value that specifies the
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/// maximum amount of time to be spent resolving the link. The function returns if the
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/// link cannot be resolved within the time-out duration. If the high-order word is set
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/// to zero, the time-out duration will be set to the default value of 3,000 milliseconds
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/// (3 seconds). To specify a value, set the high word of fFlags to the desired time-out
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/// duration, in milliseconds.
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/// </summary>
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SLR_NO_UI = 0x1,
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/// <summary>Obsolete and no longer used</summary>
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SLR_ANY_MATCH = 0x2,
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/// <summary>If the link object has changed, update its path and list of identifiers.
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/// If SLR_UPDATE is set, you do not need to call IPersistFile::IsDirty to determine
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/// whether or not the link object has changed.</summary>
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SLR_UPDATE = 0x4,
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/// <summary>Do not update the link information</summary>
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SLR_NOUPDATE = 0x8,
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/// <summary>Do not execute the search heuristics</summary>
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SLR_NOSEARCH = 0x10,
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/// <summary>Do not use distributed link tracking</summary>
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SLR_NOTRACK = 0x20,
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/// <summary>Disable distributed link tracking. By default, distributed link tracking tracks
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/// removable media across multiple devices based on the volume name. It also uses the
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/// Universal Naming Convention (UNC) path to track remote file systems whose drive letter
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/// has changed. Setting SLR_NOLINKINFO disables both types of tracking.</summary>
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SLR_NOLINKINFO = 0x40,
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/// <summary>Call the Microsoft Windows Installer</summary>
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SLR_INVOKE_MSI = 0x80
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}
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/// <summary>The IShellLink interface allows Shell links to be created, modified, and resolved</summary>
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[ComImport(), InterfaceType(ComInterfaceType.InterfaceIsIUnknown), Guid("000214F9-0000-0000-C000-000000000046")]
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interface IShellLinkW
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{
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/// <summary>Retrieves the path and file name of a Shell link object</summary>
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void GetPath([Out(), MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszFile, int cchMaxPath, out WIN32_FIND_DATAW pfd, SLGP_FLAGS fFlags);
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/// <summary>Retrieves the list of item identifiers for a Shell link object</summary>
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void GetIDList(out IntPtr ppidl);
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/// <summary>Sets the pointer to an item identifier list (PIDL) for a Shell link object.</summary>
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void SetIDList(IntPtr pidl);
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/// <summary>Retrieves the description string for a Shell link object</summary>
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void GetDescription([Out(), MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszName, int cchMaxName);
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/// <summary>Sets the description for a Shell link object. The description can be any application-defined string</summary>
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void SetDescription([MarshalAs(UnmanagedType.LPWStr)] string pszName);
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/// <summary>Retrieves the name of the working directory for a Shell link object</summary>
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void GetWorkingDirectory([Out(), MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszDir, int cchMaxPath);
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/// <summary>Sets the name of the working directory for a Shell link object</summary>
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void SetWorkingDirectory([MarshalAs(UnmanagedType.LPWStr)] string pszDir);
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/// <summary>Retrieves the command-line arguments associated with a Shell link object</summary>
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void GetArguments([Out(), MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszArgs, int cchMaxPath);
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/// <summary>Sets the command-line arguments for a Shell link object</summary>
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void SetArguments([MarshalAs(UnmanagedType.LPWStr)] string pszArgs);
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/// <summary>Retrieves the hot key for a Shell link object</summary>
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void GetHotkey(out short pwHotkey);
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/// <summary>Sets a hot key for a Shell link object</summary>
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void SetHotkey(short wHotkey);
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/// <summary>Retrieves the show command for a Shell link object</summary>
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void GetShowCmd(out int piShowCmd);
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/// <summary>Sets the show command for a Shell link object. The show command sets the initial show state of the window.</summary>
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void SetShowCmd(int iShowCmd);
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/// <summary>Retrieves the location (path and index) of the icon for a Shell link object</summary>
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void GetIconLocation([Out(), MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszIconPath,
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int cchIconPath, out int piIcon);
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/// <summary>Sets the location (path and index) of the icon for a Shell link object</summary>
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void SetIconLocation([MarshalAs(UnmanagedType.LPWStr)] string pszIconPath, int iIcon);
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/// <summary>Sets the relative path to the Shell link object</summary>
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void SetRelativePath([MarshalAs(UnmanagedType.LPWStr)] string pszPathRel, int dwReserved);
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/// <summary>Attempts to find the target of a Shell link, even if it has been moved or renamed</summary>
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void Resolve(IntPtr hwnd, SLR_FLAGS fFlags);
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/// <summary>Sets the path and file name of a Shell link object</summary>
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void SetPath([MarshalAs(UnmanagedType.LPWStr)] string pszFile);
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}
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[ComImport, Guid("0000010c-0000-0000-c000-000000000046"),
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InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
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public interface IPersist
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{
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[PreserveSig]
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void GetClassID(out Guid pClassID);
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}
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[ComImport, Guid("0000010b-0000-0000-C000-000000000046"),
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InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
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public interface IPersistFile : IPersist
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{
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new void GetClassID(out Guid pClassID);
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[PreserveSig]
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int IsDirty();
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[PreserveSig]
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void Load([In, MarshalAs(UnmanagedType.LPWStr)]
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string pszFileName, uint dwMode);
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[PreserveSig]
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void Save([In, MarshalAs(UnmanagedType.LPWStr)] string pszFileName,
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[In, MarshalAs(UnmanagedType.Bool)] bool remember);
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[PreserveSig]
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void SaveCompleted([In, MarshalAs(UnmanagedType.LPWStr)] string pszFileName);
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[PreserveSig]
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void GetCurFile([In, MarshalAs(UnmanagedType.LPWStr)] string ppszFileName);
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}
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const uint STGM_READ = 0;
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const int MAX_PATH = 260;
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// CLSID_ShellLink from ShlGuid.h
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[
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ComImport(),
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Guid("00021401-0000-0000-C000-000000000046")
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]
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public class ShellLink
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{
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}
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#endregion
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public static string ResolveShortcut(string filename)
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{
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ShellLink link = new ShellLink();
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((IPersistFile)link).Load(filename, STGM_READ);
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// TODO: if I can get hold of the hwnd call resolve first. This handles moved and renamed files.
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// ((IShellLinkW)link).Resolve(hwnd, 0)
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StringBuilder sb = new StringBuilder(MAX_PATH);
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WIN32_FIND_DATAW data = new WIN32_FIND_DATAW();
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((IShellLinkW)link).GetPath(sb, sb.Capacity, out data, 0);
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return sb.ToString();
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}
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public static bool IsShortcut(string filename)
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{
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return filename != null ? Path.GetExtension(filename).EndsWith("lnk", StringComparison.OrdinalIgnoreCase) : false;
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}
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}
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}
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