Unload plugin on exit.

PluginManager.cpp

@@ -329,3 +329,11 @@ void PluginManager::UnloadPlugin(std::string path)
         ActivePlugins[plugin_idx].loaded = false;
     }
 }
+
+void PluginManager::UnloadPlugins()
+{
+    for(const OpenRGBPluginEntry& plugin_entry: ActivePlugins)
+    {
+        plugin_entry.plugin->Unload();
+    }
+}

PluginManager.h

@@ -42,6 +42,8 @@ public:
     void LoadPlugin(std::string path);
     void UnloadPlugin(std::string path);
 
+    void UnloadPlugins();
+
     std::vector<OpenRGBPluginEntry> ActivePlugins;
 
 private:

qt/OpenRGBDialog2.cpp

@@ -438,7 +438,7 @@ OpenRGBDialog2::OpenRGBDialog2(QWidget *parent) : QMainWindow(parent), ui(new Op
     /*-----------------------------------------------------*\
     | Add the Plugins page                                  |
     \*-----------------------------------------------------*/
-    AddPluginsPage(plugin_manager);
+    AddPluginsPage();
 
     /*-----------------------------------------------------*\
     | Add the E1.31 settings page                           |
@@ -543,11 +543,12 @@ void OpenRGBDialog2::closeEvent(QCloseEvent *event)
     }
     else
     {
+        plugin_manager->UnloadPlugins();
         event->accept();
     }
 }
 
-void OpenRGBDialog2::AddPluginsPage(PluginManager* plugin_manager)
+void OpenRGBDialog2::AddPluginsPage()
 {
     /*-----------------------------------------------------*\
     | Create the Plugins page                               |

qt/OpenRGBDialog2.h

@@ -96,7 +96,7 @@ private:
     void AddQMKORGBSettingsPage();
     void AddSerialSettingsPage();
     void AddYeelightSettingsPage();
-    void AddPluginsPage(PluginManager* plugin_manager);
+    void AddPluginsPage();
     void AddConsolePage();
 
     void ClearDevicesList();