gtk2/examples/builder.c
Benjamin Otte 9e926f9a28 examples: Check for error when loading file
People playing with those examples tend to mess up things, so it's
really really unhelpful if we don't do error checking.
2018-04-11 03:11:22 +02:00

47 lines
1.2 KiB
C

#include <gtk/gtk.h>
static void
print_hello (GtkWidget *widget,
gpointer data)
{
g_print ("Hello World\n");
}
int
main (int argc,
char *argv[])
{
GtkBuilder *builder;
GObject *window;
GObject *button;
GError *error = NULL;
gtk_init (&argc, &argv);
/* Construct a GtkBuilder instance and load our UI description */
builder = gtk_builder_new ();
if (gtk_builder_add_from_file (builder, "builder.ui", &error) == 0)
{
g_printerr ("Error loading file: %s\n", error->message);
g_clear_error (&error);
return 1;
}
/* Connect signal handlers to the constructed widgets. */
window = gtk_builder_get_object (builder, "window");
g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL);
button = gtk_builder_get_object (builder, "button1");
g_signal_connect (button, "clicked", G_CALLBACK (print_hello), NULL);
button = gtk_builder_get_object (builder, "button2");
g_signal_connect (button, "clicked", G_CALLBACK (print_hello), NULL);
button = gtk_builder_get_object (builder, "quit");
g_signal_connect (button, "clicked", G_CALLBACK (gtk_main_quit), NULL);
gtk_main ();
return 0;
}