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gcc -o dialogs -Wall -g main.c `pkg-config gtk+-2.0 --cflags --libs `-I/usr/include/libglade-2.0 -lglade-2.0

#include <gtk/gtk.h>
#include <glade/glade.h>

/* glade interface file is in same path as the executable */
#define GLADE_FILE "gui.glade"
     
/* signal callbacks */
void on_window1_destroy (GtkWidget *widget, gpointer user_data);
void on_quit_button_clicked (GtkWidget *widget, gpointer user_data);
void on_info_button_clicked (GtkWidget *widget, gpointer user_data);
void on_warning_button_clicked (GtkWidget *widget, gpointer user_data);
void on_error_button_clicked (GtkWidget *widget, gpointer user_data);
void on_question_button_clicked (GtkWidget *widget, gpointer user_data);

/* functions */
GtkResponseType message_dialog( GtkMessageType type,
                                GtkWindow *parent,
                                const gchar *title,
                                const gchar *message);
               
int
main (int argc, char *argv[])
{
       
        GtkWidget *main_window; 
        GladeXML *gxml;
       
        /* initialize the GTK+ library */
        gtk_init (&argc, &argv);

        /*
        create an instance of the GladeXML object and build widgets within
        the window1 root node.
        */
        gxml = glade_xml_new (GLADE_FILE, NULL, NULL);
       
        /* get the window widget from the glade XML file */
        main_window = glade_xml_get_widget (gxml, "window1");
       
        /* connect signals */
        glade_xml_signal_connect (gxml, "on_window1_destroy",
                G_CALLBACK(on_window1_destroy));
       
        glade_xml_signal_connect (gxml, "on_quit_button_clicked",
                G_CALLBACK(on_quit_button_clicked));
               
        glade_xml_signal_connect_data (gxml, "on_info_button_clicked",
                G_CALLBACK(on_info_button_clicked), main_window);

        glade_xml_signal_connect_data (gxml, "on_warning_button_clicked",
                G_CALLBACK(on_warning_button_clicked), main_window);
               
        glade_xml_signal_connect_data (gxml, "on_error_button_clicked",
                G_CALLBACK(on_error_button_clicked), main_window);

        glade_xml_signal_connect_data (gxml, "on_question_button_clicked",
                G_CALLBACK(on_question_button_clicked), main_window);
               
               
        /* show the main window */
        gtk_widget_show (main_window);

        /* begin main GTK loop */
        gtk_main ();
       
        return 0;     
}

void
on_window1_destroy (GtkWidget *widget, gpointer user_data)
{
        /* break gtk_main() loop */
        gtk_main_quit();                       
}

void
on_quit_button_clicked (GtkWidget *widget, gpointer user_data)
{
        /* break gtk_main() loop */
        gtk_main_quit();                       
}

void
on_info_button_clicked (GtkWidget *widget, gpointer user_data)
{
        /*
        Show message dialog.  We're casting the user_data into a GtkWindow
        because we passed window1 into the user_data when we connected the
        signals in main().  So window1 is going to the the "parent" for the
        dialog.
        */
        message_dialog(GTK_MESSAGE_INFO,
                        GTK_WINDOW(user_data),
                        "Information",
                        "Did you know that it snowed today in Portland?");                     
}

void
on_warning_button_clicked (GtkWidget *widget, gpointer user_data)
{
        /*
        Show message dialog.  We're casting the user_data into a GtkWindow
        because we passed window1 into the user_data when we connected the
        signals in main().  So window1 is going to the the "parent" for the
        dialog.
        */
        message_dialog(GTK_MESSAGE_WARNING,
                        GTK_WINDOW(user_data),
                        "Warning",
                        "I'm warning you for the last time!");                 
}

void
on_error_button_clicked (GtkWidget *widget, gpointer user_data)
{
        /*
        Show message dialog.  We're casting the user_data into a GtkWindow
        because we passed window1 into the user_data when we connected the
        signals in main().  So window1 is going to the the "parent" for the
        dialog.
        */
        message_dialog(GTK_MESSAGE_ERROR,
                        GTK_WINDOW(user_data),
                        "Error!",
                        "BOOM! You messed up bad this time buddy!");
                       
}

void
on_question_button_clicked (GtkWidget *widget, gpointer user_data)
{
        /*
        Show message dialog.  We're casting the user_data into a GtkWindow
        because we passed window1 into the user_data when we connected the
        signals in main().  So window1 is going to the the "parent" for the
        dialog.
        */
       
        GtkResponseType answer;
       
        answer = message_dialog(GTK_MESSAGE_QUESTION,
                        GTK_WINDOW(user_data),
                        "Question",
                        "Do you like GTK+ programming?");
                       
        if (answer == GTK_RESPONSE_YES)
        {
                message_dialog(GTK_MESSAGE_INFO,
                                GTK_WINDOW(user_data),
                                "Good!",
                                "Darn right you do!");
        }
        else if (answer == GTK_RESPONSE_NO)
        {
                message_dialog(GTK_MESSAGE_ERROR,
                                GTK_WINDOW(user_data),
                                "Uh Oh!",
                                "That's a horrible answer!");
        }
        else
        {
                message_dialog(GTK_MESSAGE_WARNING,
                                GTK_WINDOW(user_data),
                                "Hey!",
                                "Don't you ignore my question!");
        }
                       
}

GtkResponseType
message_dialog(GtkMessageType type,
                GtkWindow *parent,
                const gchar *title,
                const gchar *message)
{
        /*
        This function is used for all 4 types of GtkMessageDialog. See the API
        documentation for GtkMessageDialog for further information.
       
                type - 1 of 4 enum values for the type of message dialog.
                parent - The parent window for the dialog (window1)
                title - A string for the dialog box title
                message - A string to display in the dialog box
        */
       
        GtkWidget *dialog;
        GtkResponseType response;
       GtkButtonsType buttons;

        if (type == GTK_MESSAGE_QUESTION) buttons = GTK_BUTTONS_YES_NO;
        else buttons = GTK_BUTTONS_OK;
       
       /* create the dialog */
       dialog = gtk_message_dialog_new (parent,
                    GTK_DIALOG_DESTROY_WITH_PARENT,
                          type,
                        buttons,
                        message);
                       
        /* set title */
        gtk_window_set_title(GTK_WINDOW(dialog), title);
       
        /* show dialog */
   response = gtk_dialog_run (GTK_DIALOG (dialog));
   gtk_widget_destroy (dialog);   
       
        return response;
}

c:\program files\libglade\glade\glade-xml.h(26) : fatal error C1083: Cannot open include file: 'gtk/gtkdata.h': No such file or directory