ColorGroup

#define COLOR_GROUP_TYPE     (color_group_get_type ())

#define COLOR_GROUP(obj)     (GTK_CHECK_CAST((obj), COLOR_GROUP_TYPE, ColorGroup))

#define COLOR_GROUP_CLASS(k) (GTK_CHECK_CLASS_CAST(k), COLOR_GROUP_TYPE)

#define IS_COLOR_GROUP(obj)  (GTK_CHECK_TYPE((obj), COLOR_GROUP_TYPE))

GtkType     color_group_get_type            (void);

GtkObject*  color_group_new_named           (const gchar *name);

GtkObject*  color_group_from_name           (const gchar *name);

void        color_group_set_history_size    (ColorGroup *cg,
                                             gint size);

gint        color_group_get_history_size    (ColorGroup *cg);

GdkColor*   color_group_get_current_color   (ColorGroup *cg);

void        color_group_set_current_color   (ColorGroup *cg,
                                             GdkColor *color);

GdkColor*   color_group_most_recent_color   (ColorGroup *cg);

GdkColor*   color_group_oldest_color        (ColorGroup *cg);

GdkColor*   color_group_next_color          (ColorGroup *cg);

GdkColor*   color_group_previous_color      (ColorGroup *cg);

void        color_group_add_color           (ColorGroup *cg,
                                             GdkColor *color,
                                             gboolean custom_color);

void        user_function                  (ColorGroup *colorgroup,
                                            gpointer arg1,
                                            gboolean arg2,
                                            gpointer user_data);