Why this simple threat program dont work properly?

[Boris Winter <boris winter hr>]

please help ??

#include<gtk/gtk.h>
#include<stdio.h>

GtkWidget *window;
GtkWidget *poruka;
GtkWidget *label;

void *argument_thread(void *args){
unsigned long int b=0;
char a[10];

for(b;b<100000000;b++){
sprintf(a, "%u", b);
gtk_label_set(GTK_LABEL (label), a);
g_usleep(1000000);
}

}

int main(int argc, char *argv[]){
gtk_init(&argc, &argv);
g_thread_init(NULL);

window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
g_signal_connect (G_OBJECT (window), "destroy", G_CALLBACK 
(gtk_main_quit), NULL);
label = gtk_label_new ("0");

gtk_container_add (GTK_CONTAINER (window), label);
gtk_widget_show (label);

gtk_widget_show(window);

g_thread_create(argument_thread, 0, 1, 0);

gtk_main ();

return 0;
}


--
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.300 / Virus Database: 265.8.8 - Release Date: 14.2.2005