add CtrlC and CtrlZ events handling

examples/main.cpp

@@ -11,6 +11,7 @@
 #include <ftxui/component/component.hpp>
 #include <ftxui/component/component_options.hpp>
 #include <ftxui/component/screen_interactive.hpp>
+#include <ftxui/component/event.hpp>  // for Event, Event::Custom
 
 #include <vector>
 #include <string>
@@ -28,9 +29,21 @@ int main(int argc, char** argv)
 	int selectedExample = 0;
 	ftxui::MenuOption option;
 	auto screen = ftxui::ScreenInteractive::TerminalOutput();
+	screen.ForceHandleCtrlC(true);
+	//screen.ForceHandleCtrlZ(true);
 	option.on_enter = screen.ExitLoopClosure();
 	auto menu = ftxui::Menu(&examples, &selectedExample, option);
-
+	
+	menu |= ftxui::CatchEvent(
+	[&](ftxui::Event event)
+	{
+		if (event == ftxui::Event::CtrlC || event == ftxui::Event::CtrlZ)
+		{
+			screen.ExitLoopClosure()();
+			exit(0);
+		}
+		return false;
+	});
 	screen.Loop(menu);
 
 	if (selectedExample >= examples.size()) throw std::runtime_error("Invalid menu selection!");