GTK+显示HelloWorld

#include <gtk/gtk.h>

int main(int argc, char * args[])
{
 GtkWidget * win, * label;
 gtk_init(& argc, & args);

 label = gtk_label_new("Hello, world!");
 win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 gtk_container_add(GTK_CONTAINER(win), label);
 gtk_widget_show_all();

 gtk_main();

 return 0;
}