gtk: implement set_echo
Even without line editing, this makes -qmp vc more pleasant with the GTK+ backend. The only issue is that set_echo is invoked very early, long before a vc is actually associated with a VirtualConsole. To work around this, create a temporary VirtualConsole until then. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Message-id: 1450356422-31710-1-git-send-email-pbonzini@redhat.com Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
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