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| #include <gtk/gtk.h>
static void print_hello (GtkWidget *widget, gpointer data)
{
g_print ("Hello World\n");
}
static void activate (GtkApplication *app, gpointer user_data)
{
GtkWidget *window;
GtkWidget *button;
GtkWidget *box;
window = gtk_application_window_new (app);
gtk_window_set_title (GTK_WINDOW (window), "Window");
gtk_window_set_default_size (GTK_WINDOW (window), 200, 200);
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_widget_set_halign (box, GTK_ALIGN_CENTER);
gtk_widget_set_valign (box, GTK_ALIGN_CENTER);
gtk_window_set_child (GTK_WINDOW (window), box);
button = gtk_button_new_with_label ("Hello World");
g_signal_connect (button, "clicked", G_CALLBACK (print_hello), NULL);
g_signal_connect_swapped (button, "clicked", G_CALLBACK (gtk_window_destroy), window);
gtk_box_append (GTK_BOX (box), button);
gtk_widget_show (window);
}
int main (int argc, char **argv)
{
GtkApplication *app;
int status;
app = gtk_application_new ("org.gtk.example", G_APPLICATION_DEFAULT_FLAGS);
g_signal_connect (app, "activate", G_CALLBACK (activate), NULL);
status = g_application_run (G_APPLICATION (app), argc, argv);
g_object_unref (app);
return status;
}
|
