Hi all,
I have written a program in Gtk that has an icon in system tray.
This icon's image will be changed every 1s by a thread.
The problem is, icon's image in system tray does not change as thread update it.
Any help would be great appreciated.
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The source code is as below:
Code:
#include <gtk/gtk.h>
#include <stdlib.h>
int image = 0;
GtkStatusIcon *tray_icon = NULL;
static GtkStatusIcon *create_tray_icon() {
GError *error = NULL;
tray_icon = gtk_status_icon_new_from_file ("/usr/share/pixmaps/gnome-laptop.png");
gtk_status_icon_set_tooltip(tray_icon,
"Example Tray Icon");
gtk_status_icon_set_visible(tray_icon, TRUE);
return tray_icon;
}
void *update_icon_thread (void *tid)
{
while (1) {
if (1 == image) {
gtk_status_icon_set_from_file (tray_icon, "/usr/share/pixmaps/gnome-laptop.png");
image = 0;
} else {
gtk_status_icon_set_from_file (tray_icon, "/usr/share/pixmaps/apple-red.png");
image = 1;
}
sleep(1);
}
}
int main(int argc, char **argv) {
GtkStatusIcon *tray_icon;
pthread_t thread;
int rc;
gtk_init(&argc, &argv);
tray_icon = create_tray_icon();
rc = pthread_create(&thread, NULL, update_icon_thread, (void *)NULL);
if (rc) {
printf("ERROR; return code from pthread_create() is %d\n", rc);
exit(-1);
}
gtk_main();
return 0;
}
