[请教]初学Gtk编程遇问题

jacobzz

在学习《GTK+/GNOME程序设计》中，遇到例程labelsample
编译后运行是按按钮时终端内显示
(lablesample:2590: GLib-GObject-CRITICAL **: g_signal_connect_closure_by_id: assertion `signal_id > 0' failed
且Lable不变
我认为该程序是应该能够通过按钮改变label的内容的
请高人指点一二，多谢了

编程环境：FreeBSD 7.2R

源程序如下

1. #include <gtk/gtk.h>
   
2. 
   
3. void CloseTheApp(GtkWidget *window,gpointer data)
   
4. {
   
5. gtk_main_quit();
   
6. }
   
7. 
   
8. void ChangeText(GtkButton *button,gpointer data)
   
9. {
   
10. static gboolean textType =TRUE;
    
11. 
    
12. if(textType)
    
13. gtk_label_set_text(GTK_LABEL(data),"Some Text");
    
14. else
    
15. gtk_label_set_text(GTK_LABEL(data),"More Text");
    
16. 
    
17. textType=!textType;
    
18. }
    
19. 
    
20. gint main(gint argc,gchar *argv[])
    
21. {
    
22. GtkWidget *window;
    
23. GtkWidget *label;
    
24. GtkWidget *mainbox;
    
25. GtkWidget *button;
    
26. 
    
27. gtk_init(&argc,&argv);
    
28. 
    
29. window=gtk_window_new(GTK_WINDOW_TOPLEVEL);
    
30. gtk_window_set_default_size(GTK_WINDOW(window),320,200);
    
31. gtk_window_set_title(GTK_WINDOW(window),"Label Sample");
    
32. gtk_container_set_border_width(GTK_CONTAINER(window),10);
    
33. 
    
34. gtk_signal_connect(GTK_OBJECT(window),"destroy",
    
35. GTK_SIGNAL_FUNC(CloseTheApp),NULL);
    
36. 
    
37. mainbox=gtk_vbox_new(FALSE,5);
    
38. 
    
39. label=gtk_label_new("A Label");
    
40. gtk_box_pack_start(GTK_BOX(mainbox),label,TRUE,TRUE,5);
    
41. 
    
42. button=gtk_button_new_with_label("Change Text");
    
43. gtk_box_pack_end(GTK_BOX(mainbox),button,TRUE,TRUE,5);
    
44. 
    
45. gtk_signal_connect(GTK_OBJECT(button),"Clicked",
    
46. GTK_SIGNAL_FUNC(ChangeText),label);
    
47. 
    
48. gtk_container_add(GTK_CONTAINER(window),mainbox);
    
49. 
    
50. gtk_widget_show_all(window);
    
51. 
    
52. gtk_main();
    
53. 
    
54. return 0;
    
55. }

复制代码

jacobzz

晕，怎么出了那么多的笑脸…………

jacobzz

呼呼，改好了

jacobzz

呃，自行解决了
原来在
gtk_signal_connect(GTK_OBJECT(button),"Clicked",
GTK_SIGNAL_FUNC(ChangeText),label);
里把"clicked"写成了"Clicked"………………

warmb2009

前来围观

chinesedragon

原来如此

linuxlixk

前来围观