From 7bf04600054689cc9e2a061101467c0a6a0a377f Mon Sep 17 00:00:00 2001
From: Ozgur Ozcitak <ozcitak@yahoo.com>
Date: Mon, 10 Dec 2018 18:41:16 +0300
Subject: [PATCH] Use absolute path in extractor.

---
 ImageListView/Extractor.cs    | 28 ++++++++++++++++++++++++----
 ImageListViewDemo/DemoForm.cs |  4 ++--
 2 files changed, 26 insertions(+), 6 deletions(-)

diff --git a/ImageListView/Extractor.cs b/ImageListView/Extractor.cs
index 2492d0e5..cf0c0ef9 100644
--- a/ImageListView/Extractor.cs
+++ b/ImageListView/Extractor.cs
@@ -18,6 +18,8 @@
 // WIC support coded by Jens
 
 using System;
+using System.IO;
+using System.Linq;
 using System.Reflection;
 
 namespace Manina.Windows.Forms
@@ -48,21 +50,39 @@ public static IExtractor Instance
                     {
                         try
                         {
-                            Assembly assembly = Assembly.LoadFrom("WPFThumbnailExtractor.dll");
-                            Type type = assembly.GetType("WPFExtractor");
-                            instance = (IExtractor)Activator.CreateInstance(type);
+                            string programFolder = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
+                            string pluginFileName = Path.Combine(programFolder, "WPFThumbnailExtractor.dll");
+                            instance = LoadFrom(pluginFileName);
                         }
-                        catch
+                        catch (Exception e)
                         {
+                            System.Windows.Forms.MessageBox.Show(e.ToString());
                             instance = new GDIExtractor();
                         }
                     }
                 }
 
+                if (instance == null)
+                    instance = new GDIExtractor();
+
                 return instance;
             }
         }
 
+        private static IExtractor LoadFrom(string pluginFileName)
+        {
+            Assembly assembly = Assembly.LoadFrom(pluginFileName);
+            foreach (Type type in assembly.GetTypes())
+            {
+                if (type.GetInterfaces().Contains(typeof(IExtractor)) && !type.IsInterface && type.IsClass && !type.IsAbstract)
+                {
+                    return (IExtractor)Activator.CreateInstance(type, new object[0]);
+                }
+            }
+
+            return null;
+        }
+
         public static bool UseWIC
         {
             get
diff --git a/ImageListViewDemo/DemoForm.cs b/ImageListViewDemo/DemoForm.cs
index ed1478b0..c7ca669a 100644
--- a/ImageListViewDemo/DemoForm.cs
+++ b/ImageListViewDemo/DemoForm.cs
@@ -482,8 +482,8 @@ private void PopulateListView(DirectoryInfo path)
             }
             foreach (FileInfo p in files)
             {
-                if (p.Name.EndsWith(".jpg", StringComparison.OrdinalIgnoreCase) ||
-                    p.Name.EndsWith(".mp4", StringComparison.OrdinalIgnoreCase) ||
+                if (p.Name.EndsWith(".pdf", StringComparison.OrdinalIgnoreCase) ||
+                    p.Name.EndsWith(".jpg", StringComparison.OrdinalIgnoreCase) ||
                     p.Name.EndsWith(".png", StringComparison.OrdinalIgnoreCase) ||
                     p.Name.EndsWith(".bmp", StringComparison.OrdinalIgnoreCase) ||
                     p.Name.EndsWith(".ico", StringComparison.OrdinalIgnoreCase) ||