Creates a new language manager. If you do not need more than one language manager or a private language manager instance then use gtk_source_language_manager_get_default() instead.
a new #GtkSourceLanguageManager.
ConstructionException GTK+ fails to create the object.
See Implementation
Creates a new language manager. If you do not need more than one language manager or a private language manager instance then use gtk_source_language_manager_get_default() instead.