no secuencial ?¿?

[guigtk <guigtk ole com>]

Hi:
When i press a button the program call to a funtion to do:
{
  gtk_widget_hide(window1);
  Display_list();
  gdk_beep();
}
but first does Display_list() and then gtk_widget_hide(window1).


How can I do this in secuential order???


Thanks a million 
guillermo