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program ex2;
{$mode objfpc}
uses
glib,gtk;
procedure destroy(widget : pGtkWidget ; data: pgpointer ); cdecl;
begin
gtk_main_quit();
end;
var
window : PGtkWidget;
button : PGtkWidget;
begin
gtk_init (@argc, @argv);
window := gtk_window_new (GTK_WINDOW_TOPLEVEL);
button := gtk_button_new_with_label('Click me');
gtk_container_set_border_width(GTK_CONTAINER(Window),5);
gtk_container_add(GTK_Container(window),button);
gtk_signal_connect (PGTKOBJECT (window), 'destroy',
GTK_SIGNAL_FUNC (@destroy), NULL);
gtk_widget_show (button);
gtk_widget_show (window);
gtk_main ();
end.
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