gtk 플밍 에서 타이틀바 없애는 방법이 어떻게 되죠..??

#include

int main( int argc, char *argv[] )
{
GtkWidget *window;

gtk_init (&argc, &argv);

window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_widget_set_usize(window, gdk_screen_width(), gdk_screen_height());
gtk_widget_set_uposition(window, 0, 0);

gtk_widget_realize(window);
gdk_window_set_decorations(window->window, 0);

gtk_widget_show (window);

gtk_main ();

return(0);
}

C wrote..
.