÷ÐÅÒÅÄ: óÂÏÒËÁ Hello, World îÁÚÁÄ: 3.1 çÁÌÏÐÏÍ ÐÏ Gtk+
#include <gtk/gtk.h>
static gint delete_event_cb(GtkWidget *w, GtkEventAny *e,
gpointer data);
static void button_click_cb(GtkWidget *w, gpointer data);
int main(int argc, char *argv[])
{
GtkWidget *window;
GtkWidget *button;
GtkWidget *label;
gtk_init(&argc, &argv);
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
button = gtk_button_new();
label = gtk_label_new("Hello, World!");
gtk_container_add(GTK_CONTAINER(button), label);
gtk_container_add(GTK_CONTAINER(window), button);
gtk_window_set_title(GTK_WINDOW), "Hello");
gtk_container_set_border_width(GTK_CONTAINER(button), 10);
gtk_signal_connect(GTK_OBJECT(window), "delete_event",
GTK_SIGNAL_FUNC(delete_event_cb), NULL);
gtk_signal_connect(GTK_OBJECT(button), "clicked",
GTK_SIGNAL_FUNC(button_click_cb), label);
gtk_widget_show_all(window);
gtk_main();
return 0;
}
static gint delete_event_cb(GtkWidget *window, GdkEventAny *e,
gpointer data)
{
gtk_main_quit();
return FALSE;
}
static void button_click_cb(GtkWidget *w, gpointer data)
{
GtkWidget *label;
gchar *text;
gchar *tmp;
label = GTK_WIDGET(data);
gtk_label_get(GTK_LABEL(label), &text);
tmp = g_strdup(text);
g_str_reverse(tmp);
gtl_label_set_text(GTK_LABEL(label), tmp);
g_free(tmp);
}