Finish the dynamic loading of modules

app/ModulesHandle.cpp

@@ -239,21 +239,22 @@ Void ModulesHandle::processOpt( Int index )
 
 Void ModulesHandle::loadExternalModule()
 {
+  Bool bUpdate = false;
   QString supported = tr( "Supported Files (*.so)" );
   QStringList formatsList;
   formatsList << "Shared Libraries (*.so)";
-
   QStringList filter;
   filter << supported
          << formatsList
          << tr( "All Files (*)" );
+  QStringList fileNames = QFileDialog::getOpenFileNames( m_pcParent, tr( "Open File" ), QString(), filter.join( ";;" ) );
 
-  QString fileName = QFileDialog::getSaveFileName( m_pcParent, tr( "Open File" ), QString(), filter.join( ";;" ) );
-  if( !fileName.isEmpty() )
+  for( Int i = 0; i < fileNames.size(); i++ )
   {
-    PlaYUVerModuleFactory::Get()->RegisterDl( fileName.toStdString().data() );
-    buildMenu();
+    bUpdate |= PlaYUVerModuleFactory::Get()->RegisterDl( fileNames.at( i ).toStdString().data() );
   }
+  if( bUpdate )
+    buildMenu();
 }
 
 Void ModulesHandle::activateModule()

examples/modules/FrameBinarization_APIv1.cpp

@@ -27,6 +27,8 @@
 namespace plaYUVer
 {
 
+REGISTER_CLASS_MAKER( FrameBinarization )
+
 FrameBinarization::FrameBinarization()
 {
   /* Module Definition */

modules/PlaYUVerModuleFactory.cpp

@@ -61,17 +61,22 @@ Void PlaYUVerModuleFactory::Register( const char* moduleName, CreateModuleFn pfn
   m_FactoryMap[moduleName] = pfnCreate;
 }
 
-Void PlaYUVerModuleFactory::RegisterDl( const char* dlName )
+Bool PlaYUVerModuleFactory::RegisterDl( const char* dlName )
 {
   void *pHndl = dlopen( dlName, RTLD_NOW );
   if( pHndl == NULL )
   {
     std::cerr << dlerror()
               << std::endl;
-    exit( -1 );
+    return false;
+  }
+  CreateModuleFn pfnCreate = ( CreateModuleFn )dlsym( pHndl, "Maker" );
+  if( pfnCreate == NULL )
+  {
+    return false;
   }
-  CreateModuleFn pfnCreate = (CreateModuleFn) dlsym( pHndl, "CreateModule" );
   Register( dlName, pfnCreate );
+  return true;
 }
 
 PlaYUVerModuleIf *PlaYUVerModuleFactory::CreateModule( const char* moduleName )

modules/PlaYUVerModuleFactory.h

@@ -58,7 +58,7 @@ public:
   }
 
   Void Register( const char* moduleName, CreateModuleFn pfnCreate );
-  Void RegisterDl( const char* dlName );
+  Bool RegisterDl( const char* dlName );
 
   PlaYUVerModuleIf *CreateModule( const char *moduleName );
   PlaYUVerModuleFactoryMap& getMap()