The GtkRadiant sources as originally released under the GPL license.

radiant/plugin.h

@@ -0,0 +1,47 @@
+/*
+Copyright (C) 2001-2006, William Joseph.
+All Rights Reserved.
+
+This file is part of GtkRadiant.
+
+GtkRadiant 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 2 of the License, or
+(at your option) any later version.
+
+GtkRadiant 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 GtkRadiant; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#if !defined(INCLUDED_PLUGIN_H)
+#define INCLUDED_PLUGIN_H
+
+class ModuleServer;
+bool Radiant_Construct(ModuleServer& server);
+void Radiant_Destroy();
+
+
+template<typename Type>
+class Modules;
+
+struct _QERPlugImageTable;
+typedef Modules<_QERPlugImageTable> ImageModules;
+ImageModules& Radiant_getImageModules();
+class MapFormat;
+typedef Modules<MapFormat> MapModules;
+MapModules& Radiant_getMapModules();
+struct _QERPlugToolbarTable;
+typedef Modules<_QERPlugToolbarTable> ToolbarModules;
+ToolbarModules& Radiant_getToolbarModules();
+struct _QERPluginTable;
+typedef Modules<_QERPluginTable> PluginModules;
+PluginModules& Radiant_getPluginModules();
+
+
+#endif