c_gtk_tree_model_filter_set_visible_func

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
__gshared extern (C)
void function(GtkTreeModelFilter* filter, GtkTreeModelFilterVisibleFunc func, void* data, GDestroyNotify destroy) c_gtk_tree_model_filter_set_visible_func;

Meta