GTK入门导引

#ifndef __MAIN_H__
#define __MAIN_H__
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
void file_quit_cmd_callback(GtkWidget *widget, gpointer data);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __MAIN_H__ */
And main.c 
#include <gtk/gtk.h>
#include "main.h"
#include "menus.h"
int main(int argc, char *argv[])
{
GtkWidget *window;
GtkWidget *main_vbox;
GtkWidget *menubar;
GtkAcceleratorTable *accel;
gtk_init(&argc, &argv);
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_signal_connect(GTK_OBJECT(window), "destroy", 
GTK_SIGNAL_FUNC(file_quit_cmd_callback), 
"WM destroy");
gtk_window_set_title(GTK_WINDOW(window), "Menu Factory");
gtk_widget_set_usize(GTK_WIDGET(window), 300, 200);
main_vbox = gtk_vbox_new(FALSE, 1);
gtk_container_border_width(GTK_CONTAINER(main_vbox), 1);
gtk_container_add(GTK_CONTAINER(window), main_vbox);
gtk_widget_show(main_vbox);
get_main_menu(&menubar, &accel);
gtk_window_add_accelerator_table(GTK_WINDOW(window), accel);
gtk_box_pack_start(GTK_BOX(main_vbox), menubar, FALSE, TRUE, 0);
gtk_widget_show(menubar);
gtk_widget_show(window);
gtk_main();
return(0);
}
/* This is just to demonstrate how callbacks work when using the
 * menufactory.Often, people put all the callbacks from the menus
 * in a separate file, and then have them call the appropriate functions
 * from there.Keeps it more organized. */
void file_quit_cmd_callback (GtkWidget *widget, gpointer data)
{
g_print ("%s
", (char *) data);
gtk_exit(0);
}

CC= gcc
PROF= -g
C_FLAGS =-Wall $(PROF) -L/usr/local/include -DDEBUG
L_FLAGS =$(PROF) -L/usr/X11R6/lib -L/usr/local/lib 
L_POSTFLAGS = -lgtk -lgdk -lglib -lXext -lX11 -lm
PROGNAME = at
O_FILES = menus.o main.o
$(PROGNAME): $(O_FILES)
rm -f $(PROGNAME)
$(CC) $(L_FLAGS) -o $(PROGNAME) $(O_FILES) $(L_POSTFLAGS)
.c.o: 
$(CC) -c $(C_FLAGS) $<
clean: 
rm -f core *.o $(PROGNAME) nohup.out
distclean: clean 
rm -f *~

gint gtk_timeout_add (guint32 interval,
GtkFunction function,
gpointer data);

void gtk_timeout_remove (gint tag);

gint timeout_callback (gpointer data);

gint gdk_input_add (gint source,
GdkInputCondition condition,
GdkInputFunctionfunction,
gpointer data);

void gdk_input_remove (gint tag);

gint gtk_idle_add (GtkFunction function,gpointer data);

void gtk_idle_remove (gint tag);