fix plugin loading, if call executable from another folder

Author: unitycoder

MainWindow.xaml.cs

@@ -30,7 +30,7 @@ namespace PointCloudConverter
 {
     public partial class MainWindow : Window
     {
-        static readonly string version = "04.04.2025";
+        static readonly string version = "05.04.2025";
         static readonly string appname = "PointCloud Converter - " + version;
         static readonly string rootFolder = AppDomain.CurrentDomain.BaseDirectory;
 
@@ -104,7 +104,11 @@ private async void Main()
             ////testwriter.Close();
             //externalWriters = AppDomain.CurrentDomain.GetAssemblies().SelectMany(assembly => assembly.GetTypes()).Where(type => typeof(IWriter).IsAssignableFrom(type) && !type.IsInterface);
 
-            var pluginsDirectory = "plugins";
+            // Get the directory of the running executable
+            var exeDir = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
+
+            // Build absolute path to plugins folder
+            var pluginsDirectory = Path.Combine(exeDir, "plugins");
 
             if (Directory.Exists(pluginsDirectory))
             {

Tools/PluginLoader.cs

@@ -13,24 +13,31 @@ namespace PointCloudConverter.Plugins
 {
     public static class PluginLoader
     {
-        static readonly string pluginDirectory = Path.Combine(Directory.GetCurrentDirectory(), "Plugins");
+        // Resolve plugin folder relative to the .exe location instead of current working directory
+        static readonly string pluginDirectory = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), "Plugins");
 
         // TODO add logger, if needed
-        //static ILogger Log;
+        // static ILogger Log;
 
         public static IWriter LoadWriter(string pluginName)
         {
-            //Log = logger;
+            // Log = logger;
 
+            // Build the full path to the plugin DLL
             string pluginPath = Path.Combine(pluginDirectory, pluginName + ".dll");
-            //Log.Write($"Loading plugin at {pluginPath}");
-            if (File.Exists(pluginPath) == false) throw new FileNotFoundException($"The plugin at {pluginPath} could not be found.");
 
-            // Load the plugin assembly
+            // Log.Write($"Loading plugin at {pluginPath}");
+
+            // Check if the plugin DLL exists
+            if (File.Exists(pluginPath) == false)
+                throw new FileNotFoundException($"The plugin at {pluginPath} could not be found.");
+
+            // Load the plugin assembly from the DLL
             var pluginAssembly = Assembly.LoadFrom(pluginPath);
 
-            // Find the specific type 'PointCloudConverter.Writers.GLTF'
-            var writerType = pluginAssembly.GetType("PointCloudConverter.Writers.GLB");
+            // Find the specific type 'PointCloudConverter.Writers.<PluginName>'
+            // This assumes the type name inside the DLL matches the filename
+            var writerType = pluginAssembly.GetType("PointCloudConverter.Writers." + pluginName);
 
             if (writerType == null)
                 throw new InvalidOperationException($"No valid implementation of IWriter found in {pluginPath}");