Answer by Isaac Pessoa for Getting visual feedback of workspace switch in xfce

I wrote a small code that shows a notification on workspace switch action.This code requires libnotify and libwnck

To compile it use the command:

gcc -O2 -o wsnd `pkg-config  --cflags --libs libnotify --libs libwnck` wsn.c

If you found compiling errors with above command, try this one:

gcc -O2 -DWNCK_I_KNOW_THIS_IS_UNSTABLE -o wsnd `pkg-config  --cflags --libs libnotify --libs libwnck-1.0` wsn.c

To test it from a terminal: ./wsnd

Include it as XFCE startup application:In XFCE you need to add it as startup applicaion on settings-manager->session and startup -> Application Autostart

The code:

//////////////////////////////////////////////////////////////////////////////////////// Workspace Switch Notifier                                                        //// Shows a OSD with workspace name on workspace switching action                    ////                                                                                  //// wsn.c -                                                                          ////                                                                                  //// Authors:                                                                         ////    Isaac Maia Pessoa                                                             ////                                                                                  //// This program is free software: you can redistribute it and/or modify it          //// under the terms of the GNU General Public License version 3, as published        //// by the Free Software Foundation.                                                 ////                                                                                  //// This program is distributed in the hope that it will be useful, but              //// WITHOUT ANY WARRANTY; without even the implied warranties of                     //// MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR               //// PURPOSE.  See the GNU General Public License for more details.                   ////                                                                                  //// You should have received a copy of the GNU General Public License along          //// with this program.  If not, see <http://www.gnu.org/licenses/>.                  ////////////////////////////////////////////////////////////////////////////////////////#include <libnotify/notify.h>#include <libwnck/libwnck.h>#define N_SUMMARY "Workspace Changed"#define N_ICON    "dialog-information"#define N_APPNAME "workspace switch notifier"#define N_TIMEOUT 2000 /*2000ms = 2s */static NotifyNotification * m_notification = NULL;static voidon_active_workspace_changed (WnckScreen    *screen,                             WnckWorkspace *space,                             gpointer      data){  WnckWorkspace * active_workspace = wnck_screen_get_active_workspace(screen);  const char * w_name = wnck_workspace_get_name (active_workspace);  notify_notification_update(m_notification, N_SUMMARY, w_name, N_ICON);  notify_notification_show(m_notification, NULL);}int main(int argc, char ** argv){   GMainLoop *loop;      WnckScreen *screen;   if (notify_init(N_APPNAME))       m_notification = notify_notification_new(N_SUMMARY, "" , N_ICON);   else       fprintf(stderr, "Failed to init notifications\n");   notify_notification_set_timeout(m_notification, N_TIMEOUT);   gdk_init (&argc, &argv);   loop = g_main_loop_new (NULL, FALSE);   screen = wnck_screen_get_default();   g_signal_connect (screen, "active-workspace-changed",                    G_CALLBACK (on_active_workspace_changed), NULL);   g_main_loop_run (loop);   g_main_loop_unref (loop);       return 0;}