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#include <stdio.h>
#include <stdlib.h>
#include <gtk/gtk.h>
#include <glib.h>
 
void *fonc (gpointer *data)
{
    int i;
while(1)
{
    gtk_window_set_title (GTK_WINDOW (data), "fenetre principale");
    for(i=1;i<500000000;i++){}
    gtk_window_set_title (GTK_WINDOW (data), "fenetre 123");
    for(i=1;i<500000000;i++){}
    gtk_window_set_title (GTK_WINDOW (data), "fenetre pri");
}
}
 
int main (int argc, char *argv[])
{
GThread* th1;
GtkWidget *win = NULL;
 
  g_thread_init (NULL);
  gdk_threads_init ();
  gdk_threads_enter ();
 
  gtk_init (&argc, &argv);
 
 
win = gtk_window_new (GTK_WINDOW_TOPLEVEL);
  gtk_container_set_border_width (GTK_CONTAINER (win), 8);
  gtk_window_set_default_size(GTK_WINDOW(win), 500, 500);
  gtk_window_set_title (GTK_WINDOW (win), "fenetre principale");
  gtk_window_set_position (GTK_WINDOW (win), GTK_WIN_POS_CENTER);
  g_signal_connect (win, "destroy", gtk_main_quit, NULL);
    gtk_widget_show_all (win);
 
 
th1=g_thread_create (fonc, win, FALSE, NULL);
 
  gtk_main ();
  gdk_threads_leave ();
  return 0;
}
/**/ | 
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