On 2023-03-22 08:39, Po Lu wrote:

> Andrew Tropin <andrew@trop.in> writes:
>
>> (gdb) frame 12
>> #12 0x00007ffff798ac04 in gtk_widget_event_internal (widget=widget@entry=0xfee500, event=event@entry=0xfdb4a0) at gtkwidget.c:7808
>> 7808    in gtkwidget.c
>> (gdb) p *event
>> $3 = {type = GDK_FOCUS_CHANGE, any = {type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 '\000'}, expose = {type = GDK_FOCUS_CHANGE, window = 0xefc450, 
>>     send_event = 0 '\000', area = {x = 0, y = 0, width = 0, height = 0}, region = 0x0, count = 0}, visibility = {type = GDK_FOCUS_CHANGE, window = 0xefc450, 
>>     send_event = 0 '\000', state = GDK_VISIBILITY_UNOBSCURED}, motion = {type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 '\000', time = 0, x = 0, y = 0, axes = 0x0, 
>>     state = 0, is_hint = 0, device = 0x0, x_root = 0, y_root = 0}, button = {type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 '\000', time = 0, x = 0, y = 0, 
>>     axes = 0x0, state = 0, button = 0, device = 0x0, x_root = 0, y_root = 0}, touch = {type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 '\000', time = 0, x = 0, 
>>     y = 0, axes = 0x0, state = 0, sequence = 0x0, emulating_pointer = 0, device = 0x0, x_root = 0, y_root = 0}, scroll = {type = GDK_FOCUS_CHANGE, window = 0xefc450, 
>>     send_event = 0 '\000', time = 0, x = 0, y = 0, state = 0, direction = GDK_SCROLL_UP, device = 0x0, x_root = 0, y_root = 0, delta_x = 0, delta_y = 0, is_stop = 0}, key = {
>>     type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 '\000', time = 0, state = 0, keyval = 0, length = 0, string = 0x0, hardware_keycode = 0, group = 0 '\000', 
>>     is_modifier = 0}, crossing = {type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 '\000', subwindow = 0x0, time = 0, x = 0, y = 0, x_root = 0, y_root = 0, 
>>     mode = GDK_CROSSING_NORMAL, detail = GDK_NOTIFY_ANCESTOR, focus = 0, state = 0}, focus_change = {type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 '\000', in = 1}, 
>>   configure = {type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 '\000', x = 0, y = 0, width = 0, height = 0}, property = {type = GDK_FOCUS_CHANGE, window = 0xefc450, 
>>     send_event = 0 '\000', atom = 0x0, time = 0, state = 0}, selection = {type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 '\000', selection = 0x0, target = 0x0, 
>>     property = 0x0, time = 0, requestor = 0x0}, owner_change = {type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 '\000', owner = 0x0, 
>>     reason = GDK_OWNER_CHANGE_NEW_OWNER, selection = 0x0, time = 0, selection_time = 0}, proximity = {type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 '\000', 
>>     time = 0, device = 0x0}, dnd = {type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 '\000', context = 0x0, time = 0, x_root = 0, y_root = 0}, window_state = {
>>     type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 '\000', changed_mask = 0, new_window_state = 0}, setting = {type = GDK_FOCUS_CHANGE, window = 0xefc450, 
>>     send_event = 0 '\000', action = GDK_SETTING_ACTION_NEW, name = 0x0}, grab_broken = {type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 '\000', keyboard = 0, 
>>     implicit = 0, grab_window = 0x0}, touchpad_swipe = {type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 '\000', phase = 0 '\000', n_fingers = 1 '\001', time = 0, 
>>     x = 0, y = 0, dx = 0, dy = 0, x_root = 0, y_root = 0, state = 0}, touchpad_pinch = {type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 '\000', phase = 0 '\000', 
>>     n_fingers = 1 '\001', time = 0, x = 0, y = 0, dx = 0, dy = 0, angle_delta = 0, scale = 0, x_root = 0, y_root = 0, state = 0}, pad_button = {type = GDK_FOCUS_CHANGE, 
>>     window = 0xefc450, send_event = 0 '\000', time = 0, group = 0, button = 0, mode = 0}, pad_axis = {type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 '\000', 
>>     time = 0, group = 0, index = 0, mode = 0, value = 0}, pad_group_mode = {type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 '\000', time = 0, group = 0, mode = 0}}
>>
>> Thank you for your patience :)
>
> OK, thanks.  This is quite odd.  If you type:
>
>   (gdb) p G_OBJECT_TYPE_NAME (widget)
>
> what do you see?

(gdb) p G_OBJECT_TYPE_NAME (widget)
No symbol "G_OBJECT_TYPE_NAME" in current context.

-- 
Best regards,
Andrew Tropin