+bool relay_key_press (GdkEventKey* ev, Gtk::Window* win);
+bool key_press_focus_accelerator_handler (Gtk::Window& window, GdkEventKey* ev);
+bool possibly_translate_keyval_to_make_legal_accelerator (uint32_t& keyval);
+
+Glib::RefPtr<Gdk::Pixbuf> get_xpm (std::string);
+Glib::ustring get_icon_path (const char*);
+Glib::RefPtr<Gdk::Pixbuf> get_icon (const char*);
+static std::map<std::string, Glib::RefPtr<Gdk::Pixbuf> > xpm_map;
+const char* const *get_xpm_data (std::string path);
+std::string longest (std::vector<std::string>&);
+bool key_is_legal_for_numeric_entry (guint keyval);
+void reset_dpi ();
+void set_pango_fontsize ();
+
+inline guint8 convert_color_channel (guint8 src, guint8 alpha);
+void convert_bgra_to_rgba (guint8 const* src,
+ guint8* dst,
+ int width,
+ int height);
+
+void resize_window_to_proportion_of_monitor (Gtk::Window*, int, int);
+