Question

I’d like to know which signal is emitted when a Gtk.Window is fully shown, with fully shown I mean the window itself is shown and its widgets too.

I tried several signals:

• show
• realize
• visibility-notify-event
• set_focus

but none of them works properly.

The only interesting answer I found on the web is this.

Answer 1

Connect a callback after the GtkWidget::draw signal (previously called expose in GTK+2).

Addendum

There is other stuff that comes into play: double buffering, client-side windows and (why not?) the fact that a widget can defer its drawing in an idle callback.

If you want to know when your main window appears the first time, it is far easier (and saner) add a g_idle_add after your show_all call.