Hi, all,

I found a way to make plugin that registers a new GType unloadable. That requires some work and is a bit hackish, so you'd better avoid it for simple plugins.

First, replace g_intern_static_string() with g_intern_string(). Note that G_DEFINE_TYPE_WITH_CODE() uses g_intern_static_string(), so you have to expand and change it. Remove any G_PARAM_STATIC_NICK or G_PARAM_STATIC_BLURB flags from the properties registration too.

Second, create a constructor and move your instance initialization code there.

Third, each time your plugin is loaded: - check if the class exists with g_type_from_name() - if it does not, register it class normally and reference it at least once, to make sure it's fully created; there is no need to hold the reference - if it exists, but your class_type_id_volatile is zero, get the class info and fix type's constructor, finalizer and any other virtual methods, fix the interface virtual methods, and set class_type_id_volatile the g_type_from_name() value

See scp_tree_store_register_dynamic() for example.

That's all, folks! How does it work is left as an exercise for the reader. :)

Obviously, the above is not possible if: - your constructor properties, if any, depend on your instance initialization code (glib/gtk+ ctor properties are ok, depend on glib/gtk+ instance init is ok) - your type has class finalization code (glib/gtk+ class finalize is ok, your instance finalize is of course ok)