example for status icon

dropline-status-icon.c

#include "dropline-status-icon.h"

G_DEFINE_TYPE(DroplineStatusIcon, dropline_status_icon, GTK_TYPE_STATUS_ICON)

struct _DroplineStatusIconPrivate
{
   /*
    * XXX: Put stuff you need during runtime here.
    */
   gpointer dummy;
};

GtkStatusIcon *
dropline_status_icon_new (void)
{
   return g_object_new(DROPLINE_TYPE_STATUS_ICON,
                       "icon-name", GTK_STOCK_EXECUTE, /* you can also use "file", "gicon", or "pixbuf". */
                       NULL);
   /* when you want to show this, use gtk_status_icon_set_visible(status_icon, TRUE) */
}

static void
dropline_status_icon_finalize (GObject *object)
{
   DroplineStatusIconPrivate *priv;

   priv = DROPLINE_STATUS_ICON(object)->priv;

   /*
    * XXX: Free stuff in _DroplineStatusIconPrivate here.
    */

   G_OBJECT_CLASS(dropline_status_icon_parent_class)->finalize(object);
}

static void
dropline_status_icon_class_init (DroplineStatusIconClass *klass)
{
   GObjectClass *object_class;

   object_class = G_OBJECT_CLASS(klass);
   object_class->finalize = dropline_status_icon_finalize;
   g_type_class_add_private(object_class, sizeof(DroplineStatusIconPrivate));
}

static void
dropline_status_icon_init (DroplineStatusIcon *icon)
{
   icon->priv =
      G_TYPE_INSTANCE_GET_PRIVATE(icon,
                                  DROPLINE_TYPE_STATUS_ICON,
                                  DroplineStatusIconPrivate);

   /*
    * XXX: Initialize anything you need here, like perhaps setting
    *      the icon.
    */
}

dropline-status-icon.h

#ifndef DROPLINE_STATUS_ICON_H
#define DROPLINE_STATUS_ICON_H

#include <gtk/gtk.h>

G_BEGIN_DECLS

#define DROPLINE_TYPE_STATUS_ICON            (dropline_status_icon_get_type())
#define DROPLINE_STATUS_ICON(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), DROPLINE_TYPE_STATUS_ICON, DroplineStatusIcon))
#define DROPLINE_STATUS_ICON_CONST(obj)      (G_TYPE_CHECK_INSTANCE_CAST ((obj), DROPLINE_TYPE_STATUS_ICON, DroplineStatusIcon const))
#define DROPLINE_STATUS_ICON_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  DROPLINE_TYPE_STATUS_ICON, DroplineStatusIconClass))
#define DROPLINE_IS_STATUS_ICON(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), DROPLINE_TYPE_STATUS_ICON))
#define DROPLINE_IS_STATUS_ICON_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  DROPLINE_TYPE_STATUS_ICON))
#define DROPLINE_STATUS_ICON_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  DROPLINE_TYPE_STATUS_ICON, DroplineStatusIconClass))

typedef struct _DroplineStatusIcon        DroplineStatusIcon;
typedef struct _DroplineStatusIconClass   DroplineStatusIconClass;
typedef struct _DroplineStatusIconPrivate DroplineStatusIconPrivate;

struct _DroplineStatusIcon
{
   GtkStatusIcon parent;

   /*< private >*/
   DroplineStatusIconPrivate *priv;
};

struct _DroplineStatusIconClass
{
   GtkStatusIconClass parent_class;
};

GType          dropline_status_icon_get_type (void) G_GNUC_CONST;
GtkStatusIcon *dropline_status_icon_new      (void);

G_END_DECLS

#endif /* DROPLINE_STATUS_ICON_H */