c_gtk_ui_manager_add_ui_from_string

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)
uint function(GtkUIManager* manager, const(char)* buffer, ptrdiff_t length, GError** err) c_gtk_ui_manager_add_ui_from_string;

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