#include <gtk/gtk.h>static gboolean release_resource( GtkWidget *widget,                                   GdkEvent  *event,                                   gpointer   data ){        gtk_main_quit ();        return FALSE;}void close_msg_box_handler(GtkWidget *widget,gpointer data){	gtk_widget_destroy(GTK_WIDGET(data));	}void cb_ok_handler(GtkWidget *widget,gpointer data){	GtkWidget *msg_box;	GtkWidget *label;	GtkWidget *btn;	GtkWidget *file_sel;	const gchar *var;	file_sel=GTK_WIDGET(data);		var=gtk_file_selection_get_filename(GTK_FILE_SELECTION(file_sel));	msg_box=gtk_dialog_new();	gtk_window_set_title(GTK_WINDOW(msg_box),"notice");	gtk_widget_set_size_request(msg_box,200,200);		if(var==NULL)		label=gtk_label_new("the user didn't select any files");	else		label=gtk_label_new(var);	gtk_box_pack_start(GTK_BOX(GTK_DIALOG(msg_box)->vbox),label,TRUE,TRUE,0);		btn=gtk_button_new_with_label("OK");	gtk_box_pack_start(GTK_BOX(GTK_DIALOG(msg_box)->action_area),btn,TRUE,TRUE,0);	g_signal_connect(GTK_OBJECT(btn),"clicked",					GTK_SIGNAL_FUNC(close_msg_box_handler),msg_box);		btn=gtk_button_new_with_label("Cancel");	gtk_box_pack_start(GTK_BOX(GTK_DIALOG(msg_box)->action_area),btn,TRUE,TRUE,0);	gtk_widget_show_all(msg_box);}int main(int argc,char *argv[]){        GtkWidget *file_sel;	GtkWidget *btn;        gtk_init (&argc, &argv);        	file_sel= gtk_file_selection_new("p19.6");	gtk_file_selection_complete(file_sel,"/home/program/");	gtk_file_selection_hide_fileop_buttons(file_sel);	btn=gtk_button_new_with_label("button in button area");	gtk_box_pack_start(GTK_BOX(GTK_FILE_SELECTION(file_sel)->button_area),							btn,FALSE,FALSE,0);	btn=gtk_button_new_with_label("button in action area");	gtk_box_pack_start(GTK_BOX(GTK_FILE_SELECTION(file_sel)->action_area),							btn,FALSE,FALSE,0);        g_signal_connect(G_OBJECT(GTK_FILE_SELECTION(file_sel)->ok_button),"clicked",					GTK_SIGNAL_FUNC(cb_ok_handler),(gpointer)file_sel);	        g_signal_connect(G_OBJECT(file_sel),"delete_event",					G_CALLBACK(release_resource),NULL);        gtk_widget_show_all(file_sel);        gtk_main();        return 0;}