If working...

#0  on_spinbutton1_value_changed (spinbutton=0x809d010, user_data=0x0) at
callbacks.c:333
#1  0xb7b024f6 in g_cclosure_marshal_VOID__VOID () from
/usr/lib/libgobject-2.0.so.0
#2  0xb7aebc7d in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#3  0xb7b00ec4 in g_signal_has_handler_pending () from
/usr/lib/libgobject-2.0.so.0
#4  0xb7b01e2b in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#5  0xb7b02106 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#6  0xb7e10e64 in gtk_spin_button_get_snap_to_ticks () from
/usr/lib/libgtk-x11-2.0.so.0
#7  0xb7b024f6 in g_cclosure_marshal_VOID__VOID () from
/usr/lib/libgobject-2.0.so.0
#8  0xb7aebc7d in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#9  0xb7b00ec4 in g_signal_has_handler_pending () from
/usr/lib/libgobject-2.0.so.0
#10 0xb7b01e2b in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#11 0xb7b02106 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#12 0xb7ce3b6f in gtk_adjustment_value_changed () from
/usr/lib/libgtk-x11-2.0.so.0
#13 0xb7ce3c7b in gtk_adjustment_set_value () from
/usr/lib/libgtk-x11-2.0.so.0
#14 0xb7e1168c in gtk_spin_button_set_digits () from
/usr/lib/libgtk-x11-2.0.so.0
#15 0xb7e119b8 in gtk_spin_button_spin () from /usr/lib/libgtk-x11-2.0.so.0
#16 0xb7b02a73 in g_cclosure_marshal_VOID__ENUM () from
/usr/lib/libgobject-2.0.so.0
#17 0xb7aebfa9 in g_cclosure_new_swap () from /usr/lib/libgobject-2.0.so.0
#18 0xb7aebc7d in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#19 0xb7b00a2a in g_signal_has_handler_pending () from
/usr/lib/libgobject-2.0.so.0
#20 0xb7b023ee in g_signal_emitv () from /usr/lib/libgobject-2.0.so.0
#21 0xb7ce7c68 in gtk_bin_get_child () from /usr/lib/libgtk-x11-2.0.so.0
#22 0xb7ce8dc4 in gtk_binding_set_by_class () from
/usr/lib/libgtk-x11-2.0.so.0
#23 0xb7ce902f in gtk_binding_set_by_class () from
/usr/lib/libgtk-x11-2.0.so.0
#24 0xb7ce9257 in gtk_bindings_activate_event () from
/usr/lib/libgtk-x11-2.0.so.0
#25 0xb7eb6488 in gtk_widget_activate () from /usr/lib/libgtk-x11-2.0.so.0
#26 0xb7d4a56a in gtk_entry_set_visibility () from
/usr/lib/libgtk-x11-2.0.so.0
#27 0xb7dbd600 in gtk_marshal_VOID__UINT_STRING () from
/usr/lib/libgtk-x11-2.0.so.0
#28 0xb7aebfa9 in g_cclosure_new_swap () from /usr/lib/libgobject-2.0.so.0
#29 0xb7aebc7d in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#30 0xb7b00a2a in g_signal_has_handler_pending () from
/usr/lib/libgobject-2.0.so.0
#31 0xb7b01b66 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#32 0xb7b02106 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#33 0xb7eb65c6 in gtk_widget_activate () from /usr/lib/libgtk-x11-2.0.so.0
#34 0xb7ec725a in gtk_window_propagate_key_event () from
/usr/lib/libgtk-x11-2.0.so.0
#35 0xb7ecbe4c in gtk_window_activate_key () from /usr/lib/libgtk-x11-2.0.so.0
#36 0xb7dbd600 in gtk_marshal_VOID__UINT_STRING () from
/usr/lib/libgtk-x11-2.0.so.0
#37 0xb7aebfa9 in g_cclosure_new_swap () from /usr/lib/libgobject-2.0.so.0
#38 0xb7aebc7d in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#39 0xb7b00a2a in g_signal_has_handler_pending () from
/usr/lib/libgobject-2.0.so.0
#40 0xb7b01b66 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#41 0xb7b02106 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#42 0xb7eb65c6 in gtk_widget_activate () from /usr/lib/libgtk-x11-2.0.so.0
#43 0xb7dbbc04 in gtk_propagate_event () from /usr/lib/libgtk-x11-2.0.so.0
#44 0xb7dbbe1f in gtk_main_do_event () from /usr/lib/libgtk-x11-2.0.so.0
#45 0xb7c54f82 in gdk_event_get_graphics_expose () from
/usr/lib/libgdk-x11-2.0.so.0
#46 0xb7a7bc7c in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#47 0xb7a7d5c7 in g_main_context_acquire () from /usr/lib/libglib-2.0.so.0
#48 0xb7a7d8ea in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#49 0xb7dbb0a3 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#50 0x0804a597 in main (argc=0x1, argv=0xbfcb41c4) at main.c:39

First not working...

#0  on_spinbutton1_value_changed (spinbutton=0x809d010, user_data=0x0) at
callbacks.c:333
#1  0xb7b024f6 in g_cclosure_marshal_VOID__VOID () from
/usr/lib/libgobject-2.0.so.0
#2  0xb7aebc7d in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#3  0xb7b00ec4 in g_signal_has_handler_pending () from
/usr/lib/libgobject-2.0.so.0
#4  0xb7b01e2b in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#5  0xb7b02106 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#6  0xb7e10e64 in gtk_spin_button_get_snap_to_ticks () from
/usr/lib/libgtk-x11-2.0.so.0
#7  0xb7b024f6 in g_cclosure_marshal_VOID__VOID () from
/usr/lib/libgobject-2.0.so.0
#8  0xb7aebc7d in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#9  0xb7b00ec4 in g_signal_has_handler_pending () from
/usr/lib/libgobject-2.0.so.0
#10 0xb7b01e2b in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#11 0xb7b02106 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#12 0xb7ce3b6f in gtk_adjustment_value_changed () from
/usr/lib/libgtk-x11-2.0.so.0
#13 0xb7ce3c7b in gtk_adjustment_set_value () from
/usr/lib/libgtk-x11-2.0.so.0
#14 0xb7e1168c in gtk_spin_button_set_digits () from
/usr/lib/libgtk-x11-2.0.so.0
#15 0xb7e1209c in gtk_spin_button_spin () from /usr/lib/libgtk-x11-2.0.so.0
#16 0xb7e1223e in gtk_spin_button_spin () from /usr/lib/libgtk-x11-2.0.so.0
#17 0xb7dbd600 in gtk_marshal_VOID__UINT_STRING () from
/usr/lib/libgtk-x11-2.0.so.0
#18 0xb7aebfa9 in g_cclosure_new_swap () from /usr/lib/libgobject-2.0.so.0
#19 0xb7aebc7d in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#20 0xb7b00a2a in g_signal_has_handler_pending () from
/usr/lib/libgobject-2.0.so.0
#21 0xb7b01b66 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#22 0xb7b02106 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#23 0xb7eb65c6 in gtk_widget_activate () from /usr/lib/libgtk-x11-2.0.so.0
#24 0xb7dbbaf7 in gtk_propagate_event () from /usr/lib/libgtk-x11-2.0.so.0
#25 0xb7dbbe1f in gtk_main_do_event () from /usr/lib/libgtk-x11-2.0.so.0
#26 0xb7c54f82 in gdk_event_get_graphics_expose () from
/usr/lib/libgdk-x11-2.0.so.0
#27 0xb7a7bc7c in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#28 0xb7a7d5c7 in g_main_context_acquire () from /usr/lib/libglib-2.0.so.0
#29 0xb7a7d8ea in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#30 0xb7dbb0a3 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#31 0x0804a597 in main (argc=0x1, argv=0xbfcb41c4) at main.c:39


Second not working.

#0  on_spinbutton1_value_changed (spinbutton=0x809d010, user_data=0x0) at
callbacks.c:333
#1  0xb7b024f6 in g_cclosure_marshal_VOID__VOID () from
/usr/lib/libgobject-2.0.so.0
#2  0xb7aebc7d in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#3  0xb7b00ec4 in g_signal_has_handler_pending () from
/usr/lib/libgobject-2.0.so.0
#4  0xb7b01e2b in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#5  0xb7b02106 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#6  0xb7e10e64 in gtk_spin_button_get_snap_to_ticks () from
/usr/lib/libgtk-x11-2.0.so.0
#7  0xb7b024f6 in g_cclosure_marshal_VOID__VOID () from
/usr/lib/libgobject-2.0.so.0
#8  0xb7aebc7d in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#9  0xb7b00ec4 in g_signal_has_handler_pending () from
/usr/lib/libgobject-2.0.so.0
#10 0xb7b01e2b in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#11 0xb7b02106 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#12 0xb7ce3b6f in gtk_adjustment_value_changed () from
/usr/lib/libgtk-x11-2.0.so.0
#13 0xb7ce3c7b in gtk_adjustment_set_value () from
/usr/lib/libgtk-x11-2.0.so.0
#14 0xb7e1168c in gtk_spin_button_set_digits () from
/usr/lib/libgtk-x11-2.0.so.0
#15 0xb7e11ba0 in gtk_spin_button_spin () from /usr/lib/libgtk-x11-2.0.so.0
#16 0xb7a7e6d6 in g_main_context_is_owner () from /usr/lib/libglib-2.0.so.0
#17 0xb7a7bc7c in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#18 0xb7a7d5c7 in g_main_context_acquire () from /usr/lib/libglib-2.0.so.0
#19 0xb7a7d8ea in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#20 0xb7dbb0a3 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#21 0x0804a597 in main (argc=0x1, argv=0xbfcb41c4) at main.c:39


