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#include <stdlib.h>
#include <gtk/gtk.h>
#include <gio/gio.h>
#define NOTIFY_FILTER "type='method_call',interface='org.freedesktop.Notifications',member='Notify'"
GDBusMessage*
message_filter(GDBusConnection *connection, GDBusMessage *message, gboolean incoming, gpointer user_data)
{
gchar *debug_str;
/* Discard incoming messages after looking at them */
if(incoming) {
debug_str = g_dbus_message_print(message, 0);
g_print("Message Received:\n");
g_print("%s\n", debug_str);
g_free(debug_str);
g_object_unref(message);
message = NULL;
return message;
}
/* Pass along outgoing messages */
else {
debug_str = g_dbus_message_print(message, 0);
g_print("Message Sent:\n");
g_print("%s\n", debug_str);
g_free(debug_str);
return message;
}
}
int
main(int argc, char* argv[])
{
GDBusConnection *connection;
GError *error = NULL;
GBusType type = G_BUS_TYPE_SESSION;
GDBusMessage *message;
GVariant *body;
GVariant *args[1];
GVariant *arg;
gtk_init(&argc, &argv);
connection = g_bus_get_sync(type, NULL, &error);
if(connection == NULL) {
g_printerr("Failed to open connection to session bus: %s\n", error->message);
g_error_free(error);
exit(1);
}
message = g_dbus_message_new_method_call("org.freedesktop.DBus", "/org/freedesktop/DBus",
"org.freedesktop.DBus", "AddMatch");
arg = g_variant_new_string(NOTIFY_FILTER);
args[0] = arg;
body = g_variant_new_tuple(args, 1);
g_dbus_message_set_body(message, body);
g_dbus_connection_send_message(connection, message, G_DBUS_SEND_MESSAGE_FLAGS_NONE, NULL, &error);
if(error != NULL) {
g_printerr("Failed to send message: %s\n", error->message);
g_error_free(error);
exit(1);
}
g_dbus_connection_add_filter(connection, message_filter, NULL, NULL);
gtk_main();
exit(0);
}
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