我的第一隻GTK+程式 helloworld!

#include <gtk/gtk.h>
 
static void destroy(GtkWidget *widget, gpointer data) {
    gtk_main_quit();
}
 
int main(int argc, char *argv[]) {
    GtkWidget *window;
    GtkWidget *label;
 
    gtk_init(&argc, &argv);
    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    g_signal_connect(G_OBJECT(window), "destroy", G_CALLBACK(destroy), NULL);
    label = gtk_label_new("hello world");
    gtk_container_add(GTK_CONTAINER(window), label);
    gtk_container_set_border_width(GTK_CONTAINER(window), 15);
    gtk_window_set_title(GTK_WINDOW(window), "hello world");
    gtk_widget_show(label);
    gtk_widget_show(window);
    gtk_main();
 
    return 0;
}