GTK+ Forums

lautarox · Familiar Face Joined: 28 Aug 2008 Posts: 24

I'm getting this error when I try to create a new window with a table..
If I have some old code plz tell me, cause I've learned gtk+ from a 1.2 guide =P
Thanks

Code: (Plaintext)

1
2
3
4
5
6
7

(pbclient:19237): Gtk-CRITICAL **: gtk_window_set_default_size: assertion `GTK_IS_WINDOW (window)' failed

(pbclient:19237): Gtk-CRITICAL **: gtk_window_set_title: assertion `GTK_IS_WINDOW (window)' failed

(pbclient:19237): Gtk-CRITICAL **: gtk_container_add: assertion `GTK_IS_CONTAINER (container)' failed

(pbclient:19237): Gtk-CRITICAL **: gtk_widget_show_all: assertion `GTK_IS_WIDGET (widget)' failed

This is the function..

Code: (C)

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45

void callback_main_button_build( GtkObject *object ) {

GtkWidget *frame_build;
GtkWidget *table;
GtkWidget *button_build;
GtkWidget *text_id;
GtkWidget *text_passwd;
GtkWidget *text_name;
GtkWidget *text_place;
GtkWidget *text_keyname;
GtkWidget *label_id;
GtkWidget *label_passwd;
GtkWidget *label_name;
GtkWidget *label_place;
GtkWidget *label_keyname;

table = gtk_table_new(6, 2, FALSE);
label_id = gtk_label_new("ID:");
label_passwd = gtk_label_new("Passwd:");
label_name = gtk_label_new("Name:");
label_place = gtk_label_new("Place:");
label_keyname = gtk_label_new("Keyname:");
text_id = gtk_entry_new();
text_passwd = gtk_entry_new();
text_name = gtk_entry_new();
text_place = gtk_entry_new();
text_keyname = gtk_entry_new();
button_build = gtk_button_new_with_label ("Build");
frame_build = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_default_size(GTK_WINDOW(frame_build), 250, 200);
gtk_window_set_title(GTK_WINDOW(frame_build), "Build Card");
gtk_container_add(GTK_CONTAINER(frame_build), table);
gtk_table_attach_defaults(GTK_TABLE(table), label_id, 0, 1, 0, 1);
gtk_table_attach_defaults(GTK_TABLE(table), text_id, 1, 2, 0, 1);
gtk_table_attach_defaults(GTK_TABLE(table), label_place, 0, 1, 1, 2);
gtk_table_attach_defaults(GTK_TABLE(table), text_place, 1, 2, 1, 2);
gtk_table_attach_defaults(GTK_TABLE(table), label_name, 0, 1, 2, 3);
gtk_table_attach_defaults(GTK_TABLE(table), text_name, 1, 2, 2, 3);
gtk_table_attach_defaults(GTK_TABLE(table), label_passwd, 0, 1, 3, 4);
gtk_table_attach_defaults(GTK_TABLE(table), text_passwd, 1, 2, 3, 4);
gtk_table_attach_defaults(GTK_TABLE(table), label_keyname, 0, 1, 4, 5);
gtk_table_attach_defaults(GTK_TABLE(table), text_keyname, 1, 2, 4, 5);
gtk_table_attach_defaults(GTK_TABLE(table), button_build, 0, 1, 5, 6);
gtk_widget_show_all(frame_build);
}

And I'm calling it with..

Code: (C)
1 2	g_signal_connect(G_OBJECT(menu_main_settings_edit), "activate", G_CALLBACK(callback_main_button_settings), NULL);

dreblen · Posted: Fri Aug 29, 2008 3:51 am Post subject:

I've modified it to allow it to be used independently, and it works for me (using GTK 2.12.9),
does this work for you?
also, are you using GTK 1.2 or 2.x?

Code: (C)

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58

#include <gtk/gtk.h>

void create_window(void)
{
GtkWidget *frame_build;
GtkWidget *table;
GtkWidget *button_build;
GtkWidget *text_id;
GtkWidget *text_passwd;
GtkWidget *text_name;
GtkWidget *text_place;
GtkWidget *text_keyname;
GtkWidget *label_id;
GtkWidget *label_passwd;
GtkWidget *label_name;
GtkWidget *label_place;
GtkWidget *label_keyname;

table = gtk_table_new(6, 2, FALSE);
label_id = gtk_label_new("ID:");
label_passwd = gtk_label_new("Passwd:");
label_name = gtk_label_new("Name:");
label_place = gtk_label_new("Place:");
label_keyname = gtk_label_new("Keyname:");
text_id = gtk_entry_new();
text_passwd = gtk_entry_new();
text_name = gtk_entry_new();
text_place = gtk_entry_new();
text_keyname = gtk_entry_new();
button_build = gtk_button_new_with_label ("Build");
frame_build = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_default_size(GTK_WINDOW(frame_build), 250, 200);
gtk_window_set_title(GTK_WINDOW(frame_build), "Build Card");
gtk_container_add(GTK_CONTAINER(frame_build), table);
gtk_table_attach_defaults(GTK_TABLE(table), label_id, 0, 1, 0, 1);
gtk_table_attach_defaults(GTK_TABLE(table), text_id, 1, 2, 0, 1);
gtk_table_attach_defaults(GTK_TABLE(table), label_place, 0, 1, 1, 2);
gtk_table_attach_defaults(GTK_TABLE(table), text_place, 1, 2, 1, 2);
gtk_table_attach_defaults(GTK_TABLE(table), label_name, 0, 1, 2, 3);
gtk_table_attach_defaults(GTK_TABLE(table), text_name, 1, 2, 2, 3);
gtk_table_attach_defaults(GTK_TABLE(table), label_passwd, 0, 1, 3, 4);
gtk_table_attach_defaults(GTK_TABLE(table), text_passwd, 1, 2, 3, 4);
gtk_table_attach_defaults(GTK_TABLE(table), label_keyname, 0, 1, 4, 5);
gtk_table_attach_defaults(GTK_TABLE(table), text_keyname, 1, 2, 4, 5);
gtk_table_attach_defaults(GTK_TABLE(table), button_build, 0, 1, 5, 6);
gtk_widget_show_all(frame_build);
}

int main(int argc, char **argv)
{
gtk_init(&argc, &argv);

create_window();

gtk_main();

return 0;
}

If you're using 2.x, I'd recommend reading the GTK 2.0 tutorial rather than the 1.2 one:
http://library.gnome.org/devel/gtk-tutorial/stable/
you can also find other documentation here:
http://www.gtk.org/documentation.html

lautarox · Familiar Face Joined: 28 Aug 2008 Posts: 24

Yes, but I'm using it to create another window, on a menu clicking and I'm getting that error
I'm using now gtk+ 2.0

dreblen · Posted: Fri Aug 29, 2008 4:38 pm Post subject:

can you post more/all of the code so that I can get a better idea of what's happening? thanks...

lautarox · Familiar Face Joined: 28 Aug 2008 Posts: 24

This is the one that's causing problems =S

Code: (C)

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27

void callback_main_button_settings( GtkObject *object ) {
GtkWidget *frame_settings;
GtkWidget *button_change;
GtkWidget *button_cancel;
GtkWidget *text_place;
GtkWidget *text_passwd;
GtkWidget *label_passwd;
GtkWidget *label_place;
GtkWidget *table_settings;
table_settings = gtk_table_new(3, 2, FALSE);
label_place = gtk_label_new("Place:");
label_passwd = gtk_label_new("Password:");
text_place = gtk_entry_new();
text_passwd = gtk_entry_new();
button_change = gtk_button_new_with_label ("Change");
button_cancel = gtk_button_new_with_label ("Cancel");
gtk_window_set_default_size(GTK_WINDOW(frame_settings), 400, 300);
gtk_window_set_title(GTK_WINDOW(frame_settings), "Change settings");
gtk_container_add(GTK_CONTAINER(frame_settings), table_settings);
gtk_table_attach_defaults(GTK_TABLE(table_settings), label_place, 0, 1, 0, 1);
gtk_table_attach_defaults(GTK_TABLE(table_settings), text_place, 1, 2, 0, 1);
gtk_table_attach_defaults(GTK_TABLE(table_settings), label_passwd, 0, 1, 1, 2);
gtk_table_attach_defaults(GTK_TABLE(table_settings), text_passwd, 1, 2, 1, 2);
gtk_table_attach_defaults(GTK_TABLE(table_settings), button_change, 0, 1, 2, 3);
gtk_table_attach_defaults(GTK_TABLE(table_settings), button_cancel, 1, 2, 2, 3);
gtk_widget_show_all(frame_settings);
}

dreblen · Posted: Fri Aug 29, 2008 5:29 pm Post subject:

well, if that's your actual code, then the problem is coming from the fact that you never create frame_settings using gtk_window_new,
it's referenced a few times (starting on line 17 of the snippet) but it's never initialized.
if you compile with -Wall, gcc will probably tell you that

lautarox · Familiar Face Joined: 28 Aug 2008 Posts: 24

Lol, you are right, thanks =P