CtrlH not work but others CtrlA,CtrlB... can

[dty2]

...
  auto etui = CatchEvent(rtui, [&](Event event){
    if(event == Event::CtrlH) {
      screen->Exit();
      return true;
    }
    return false;
  });
  this->content = etui;
  std::thread t([&]{
    function->postevent = std::bind(&Tui::postevent, this, std::placeholders::_1);
    function->start();
  });
  screen->Loop(content);
  delete screen;
...

this is my code, and the question is write in title
I try other ctrl + key ,which like CtrlY,CtrlA,CtrlB, all of them can work
only CtrlH can not
then I try Event::Speical("\x08"), it can't work too.
so I guess the problem is my terminal "alacritty" or my keyboard, but both of them are good
then I run sudo showkey to press CtrlH, it show these

keycode  29 press
^Hkeycode  35 press
keycode  35 release
keycode  29 release

and I don't use alias in my .zshrc
I don't know what's wrong with CtrlH, so I try to check issue like #869
and your answer is

My terminal kitty doesn't send any key when I press CTRL + Shift + C. This is mapped to "copy".

I don't believe this is possible today to receive a different code for CTRL+C and CTRL+Shift+C, due to the current xterm specification. Terminal should send the same sequence for both:
https://superuser.com/a/722895

About overriding the default CTRL-C behavior, you can:

Call ScreenInteractive::ForceHandleCtrlC(false) [(source)](https://github.com/ArthurSonzogni/FTXUI/blob/main/src/ftxui/component/screen_interactive.cpp#L562-L566)
Your component must "catch" the CTRL-C event, by returning true in some handler.

So I find some codes in source, like

/// @brief Force FTXUI to handle or not handle Ctrl-C, even if the component
/// catches the Event::CtrlC.
void ScreenInteractive::ForceHandleCtrlC(bool force) {
  force_handle_ctrl_c_ = force;
}

/// @brief Force FTXUI to handle or not handle Ctrl-Z, even if the component
/// catches the Event::CtrlZ.
void ScreenInteractive::ForceHandleCtrlZ(bool force) {
  force_handle_ctrl_z_ = force;
}

but I notice that there is no function like "ScreenInteractive::ForceHandleCtrlH"
so, I can't use the answer like "overriding the default CTRL-C behavior"

Please help me, I don't want to use other keys like CtrlU to replace CtrlH....

[ArthurSonzogni]

Yes, some mapping are already reserved by some terminal emulators. They won't let FTXUI know about them unfortunately.

I don't believe you can do anything to know about them.