What is the keycode of C-TAB?

Question

iTerm does not send ctrl+tab itself, so I need to configure it myself. I can't figure it what key code ctrl+tab is though.

Answer 1

1. In iTerm2 profiles, pick the profile you're using, then go to the Keys settings.
2. Click + to add a key command. Click and press Ctrl+Tab. Then choose the command Send Escape Sequence. Use [27;5;9~ as the sequence.

Then test this in emacs -nw -q by using C-h k C-tab to see if it displays <C-tab>.