How to use keyboards fonction with _getch(), as it is possible with getline()? : My problem is that I want to do a special thing when my user is pushing tabulation in the terminal. My first code explains that :

    char buffer[100];

   	while (true)
    {
		std::cin.getline(buffer, 100); // do IMMEDIATELY something if 'tabulation' was used ?
        
	}

So I asked myself how to check every chars ? I tried with **_getch();**

    while (true)
    {
        c = _getch();

		if (c == '\t')
		    // do something special
        else
            std::cout << (char)c;
    }

But now, I can't use any specials functions keys as arrows, del, suppr, etc... I can't ***move*** into what am I typing as I can with `getline()`

So is there any solutions to do a special interruption in a middle of a `getline()` ? 
Or is it possible to use `_getch()` in a different way ?
I also tried to do an other thread (one with `getline()` and the other with `_getch()` for checking every ) but I'm not so sure about what I can do with threads. 

It could be possible to handle every special function (arrows keys, del, suppr, etc...) 'manually' but I'm looking for another solution.

Thank you !