appinfomonitor

#include <gtk/gtk.h>

static void changed(GAppInfoMonitor *monitor) {
    printf("Info changed");
}

int main(int argc, char **argv) {
    gtk_init(&argc, &argv);

    GAppInfoMonitor *monitor = g_app_info_monitor_get();
    g_signal_connect(monitor, "changed", G_CALLBACK(changed), NULL);
    g_object_unref(monitor);

    gtk_main();
}