Fix #120: Follow .lnk

QuickLook/Helpers/AutoStartupHelper.cs

@@ -36,10 +36,7 @@ namespace QuickLook.Helpers
             {
                 File.Create(StartupFullPath).Close();
 
-                var shl = new Shell();
+                var lnk = ShellLinkHelper.OpenShellLink(StartupFullPath);
-                var dir = shl.NameSpace(Path.GetDirectoryName(StartupFullPath));
-                var itm = dir.Items().Item(Path.GetFileName(StartupFullPath));
-                var lnk = (ShellLinkObject) itm.GetLink;
 
                 lnk.Path = App.AppFullPath;
                 lnk.Arguments = "/autorun"; // silent

QuickLook/Helpers/ShellLinkHelper.cs

@@ -0,0 +1,78 @@
+// Copyright © 2018 Paddy Xu
+// 
+// This file is part of QuickLook program.
+// 
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+// 
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+using System;
+using System.IO;
+using System.Threading;
+using System.Threading.Tasks;
+using Shell32;
+
+namespace QuickLook.Helpers
+{
+    public class ShellLinkHelper
+    {
+        public static ShellLinkObject OpenShellLink(string path)
+        {
+            if (Thread.CurrentThread.GetApartmentState() != ApartmentState.STA)
+                return StartSTATask(() => OpenShellLink(path)).Result;
+
+            var shl = new Shell();
+            var dir = shl.NameSpace(Path.GetDirectoryName(path));
+            var itm = dir.Items().Item(Path.GetFileName(path));
+            var lnk = (ShellLinkObject) itm.GetLink;
+            return lnk;
+        }
+
+        public static string GetTarget(string path)
+        {
+            if (Path.GetExtension(path).ToLower() != ".lnk")
+                return path;
+
+            try
+            {
+                return Thread.CurrentThread.GetApartmentState() != ApartmentState.STA
+                    ? StartSTATask(() => GetTarget(path)).Result
+                    : OpenShellLink(path).Target.Path;
+            }
+            catch (Exception)
+            {
+                // ignored
+            }
+
+            return path;
+        }
+
+        private static Task<T> StartSTATask<T>(Func<T> func)
+        {
+            var tcs = new TaskCompletionSource<T>();
+            var thread = new Thread(() =>
+            {
+                try
+                {
+                    tcs.SetResult(func());
+                }
+                catch (Exception e)
+                {
+                    tcs.SetException(e);
+                }
+            });
+            thread.SetApartmentState(ApartmentState.STA);
+            thread.Start();
+            return tcs.Task;
+        }
+    }
+}

QuickLook/PipeServerManager.cs

@@ -22,6 +22,7 @@ using System.IO.Pipes;
 using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Threading;
+using QuickLook.Helpers;
 
 namespace QuickLook
 {
@@ -121,6 +122,8 @@ namespace QuickLook
             var wParam = msg.Substring(0, split);
             var lParam = msg.Substring(split + 1, msg.Length - split - 1);
 
+            lParam = ShellLinkHelper.GetTarget(lParam);
+
             switch (wParam)
             {
                 case PipeMessages.RunAndClose:

QuickLook/QuickLook.csproj

@@ -143,6 +143,7 @@
     <Compile Include="Controls\BusyDecorator\BusyDecorator.cs" />
     <Compile Include="Controls\BusyDecorator\VisualTargetPresentationSource.cs" />
     <Compile Include="Helpers\ShareHelper.cs" />
+    <Compile Include="Helpers\ShellLinkHelper.cs" />
     <Compile Include="PipeServerManager.cs" />
     <Compile Include="PluginManager.cs" />
     <Compile Include="Plugin\InfoPanel\FileHelper.cs" />