GTK+菜单和文本输入框不能同时出现 ，怎么解决

Desmond_Lau

1. #include<gtk/gtk.h>
   
2. int main(int argc,char *argv[]){
   
3. GtkWidget *vbox;
   
4. GtkWidget *menubar;
   
5. GtkWidget *filemenu;
   
6. GtkWidget *file;
   
7. GtkWidget *new;
   
8. GtkWidget *open;
   
9. GtkWidget *quit;
   
10. 
    
11. GtkWidget *window;
    
12. GtkWidget *table;
    
13. GtkWidget *label1;
    
14. GtkWidget *label2;
    
15. GtkWidget *label3;
    
16. GtkWidget *entry1;
    
17. GtkWidget *entry2;
    
18. GtkWidget *entry3;
    
19. 
    
20. gtk_init(&argc, &argv);
    
21. window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    
22. gtk_window_set_position(GTK_WINDOW(window),GTK_WIN_POS_CENTER);
    
23. gtk_window_set_default_size(GTK_WINDOW(window),250,200);
    
24. gtk_window_set_title(GTK_WINDOW(window),"Information");
    
25. gtk_container_set_border_width(GTK_CONTAINER(window),10);
    
26. 
    
27. vbox = gtk_vbox_new(FALSE, 0);
    
28. gtk_container_add(GTK_CONTAINER(window),vbox);
    
29. table = gtk_table_new(3, 2, FALSE);
    
30. gtk_container_add(GTK_CONTAINER(window),table);
    
31. 
    
32. menubar = gtk_menu_bar_new();
    
33. filemenu = gtk_menu_new();
    
34. file = gtk_menu_item_new_with_label("FILE");
    
35. new = gtk_menu_item_new_with_label("New");
    
36. open = gtk_menu_item_new_with_label("Open");
    
37. quit = gtk_menu_item_new_with_label("Quit");
    
38. gtk_menu_item_set_submenu(GTK_MENU_ITEM(file), filemenu);
    
39. gtk_menu_shell_append(GTK_MENU_SHELL(filemenu), new);
    
40. gtk_menu_shell_append(GTK_MENU_SHELL(filemenu), open);
    
41. gtk_menu_shell_append(GTK_MENU_SHELL(filemenu), quit);
    
42. gtk_menu_shell_append(GTK_MENU_SHELL(menubar), file);
    
43. gtk_box_pack_start(GTK_BOX(vbox), menubar, FALSE, FALSE, 3);
    
44. 
    
45. label1 = gtk_label_new("Name");
    
46. label2 = gtk_label_new("Student No.");
    
47. label3 = gtk_label_new("Major");
    
48. gtk_table_attach(GTK_TABLE(table),label1, 0, 3, 0, 1,
    
49. GTK_FILL | GTK_SHRINK,GTK_FILL | GTK_SHRINK, 5, 5);
    
50. gtk_table_attach(GTK_TABLE(table),label2, 0, 3, 1, 2,
    
51. GTK_FILL | GTK_SHRINK,GTK_FILL | GTK_SHRINK, 5, 5);
    
52. gtk_table_attach(GTK_TABLE(table),label3, 0, 3, 2, 3,
    
53. GTK_FILL | GTK_SHRINK,GTK_FILL | GTK_SHRINK, 5, 5);
    
54. entry1 = gtk_entry_new();
    
55. entry2 = gtk_entry_new();
    
56. entry3 = gtk_entry_new();
    
57. gtk_table_attach(GTK_TABLE(table),entry1, 1, 4, 0, 1,
    
58. GTK_FILL | GTK_SHRINK,GTK_FILL | GTK_SHRINK, 5, 5);
    
59. gtk_table_attach(GTK_TABLE(table),entry2, 1, 4, 1, 2,
    
60. GTK_FILL | GTK_SHRINK,GTK_FILL | GTK_SHRINK, 5, 5);
    
61. gtk_table_attach(GTK_TABLE(table),entry3, 1, 5, 2, 3,
    
62. GTK_FILL | GTK_SHRINK,GTK_FILL | GTK_SHRINK, 5, 5);
    
63. 
    
64. gtk_widget_show(table);
    
65. gtk_widget_show(label1);
    
66. gtk_widget_show(label2);
    
67. gtk_widget_show(label3);
    
68. gtk_widget_show(entry1);
    
69. gtk_widget_show(entry2);
    
70. gtk_widget_show(entry3);
    
71. gtk_widget_show(window);
    
72. gtk_widget_show_all(window);
    
73. 
    
74. g_signal_connect(window, "destroy",G_CALLBACK(gtk_main_quit),NULL);
    
75. g_signal_connect_swapped(G_OBJECT(window),"destroy",
    
76.                          G_CALLBACK(gtk_main_quit),NULL);
    
77. g_signal_connect(G_OBJECT(quit),"activate",G_CALLBACK(gtk_main_quit),NULL);
    
78. gtk_main();
    
79. 
    
80. return 0;
    
81. }
    
82. 
    
83. 
    

复制代码

提示的警告是这个，该如何改进？
Gtk-WARNING **: Attempting to add a widget with type GtkTable to a GtkWindow, but as a GtkBin subclass a GtkWindow can only contain one widget at a time; it already contains a widget of type GtkVBox