A macro for boilerplate to generate required module entry points

src/ModuleConstants.h

@@ -31,4 +31,26 @@ enum ModuleDispatchTypes
    ProjectClosing
 };
 
+// Macro generates one of the required entry points of a module
+// GetVersionString
+// REQUIRED for the module to be accepted by Audacity.
+// Without it Audacity will see a version number mismatch.
+#define DEFINE_VERSION_CHECK                                           \
+extern "C" {                                                           \
+   DLL_API const wchar_t * GetVersionString()                          \
+   {                                                                   \
+     /* Make sure that this version of the module requires the version \
+      of Audacity it is built with.                                    \
+      For now, the versions must match exactly for Audacity to         \
+      agree to load the module. */                                     \
+      return AUDACITY_VERSION_STRING;                                  \
+   }                                                                   \
+}
+
+// Macro generates minimal required entry points to load a module
+// Use it when you don't care about event notifications from the application
+#define DEFINE_MODULE_ENTRIES                                          \
+DEFINE_VERSION_CHECK                                                   \
+extern "C" DLL_API int ModuleDispatch(ModuleDispatchTypes type){ return 1; }
+
 #endif