Removing/Replacing the "computer given" functionality of backspace

[redfury]

Hello I am trying to make a notepad through linked list.
Following is my code (this is a 4D Linked list however, for a start, I am just implementing a Doubly Linked List)

#include <iostream>
#include <conio.h>
#include <iomanip>
using namespace std;
struct node
{
	char data;
	node* right;
	node* left;
	node* up;
	node* down;
};
class List
{
	node* head, * tail;
public:
	List();
	void Create_Node(char);
	void Delete_Node(); 
	void Display_List();
};
List::List()
{
	head = NULL;
	tail = NULL;
}
void List::Create_Node(char data)
{
	node* new_node = new node;
	new_node->data = data;
	new_node->left = NULL;
	new_node->right = NULL;
	new_node->up = NULL;
	new_node->down = NULL;
	if (head == NULL)
	{
		head = new_node;
		tail = new_node;
		return;
	}
	tail->right = new_node;
	new_node->left = tail;
	tail = new_node;
}
void List::Delete_Node()
{
	if (tail == NULL)
		return;
	node* temp = tail->left; 
	temp->right = NULL;
	free(tail); 
	tail = temp; 
}
void List::Display_List()
{
	node* temp = head;
	while (temp != NULL)
	{
		cout << temp->data;
		temp = temp->right;
	}
}
int main()
{
	char input;
	List obj; 
	bool fh = true; 
	while (fh)
	{
		input = _getch();
		if (input == 8 || input == 127)
		{
			obj.Delete_Node(); 
		}
		system("cls"); 
		obj.Create_Node(input); 
		obj.Display_List(); 
		if (input == '~')
			fh = false; 
	}
	cout << endl;
	return 0; 
}

Now, what I am trying to do here is to remove the actual functionality of backspace. For example, here's one outpout of mine,

My name is this

Now, If I press backspace, it does remove "s" character but it goes back to the character "i" and when I type the next character, it replaces the character 'i' which is not what I am intending to do.
All I want is it to only remove "s" and then add characters after it.

Moreover, I can only remove backspace once apparently. If after removing 's', I again press backspace, the mouse stays at the 'i' character like it is in some infinite while loop, and I am unable to find the reasoning behind this as well. If I, however, press some keys then the backspace does work agaie (but only once like before)
I think this would also be fixed if I somehow manage to remove the normal functionality of backspace.
I want my program to properly handle the backspace (that is, remove the last character and don't replace the second last character, PLUS allow removing more than one characters without having to add another character first)

(Also note that I have tried using the following code as well however it hasn't helped either)

 
if (input == '\b')

can someone help me in this regard? Thank you!

[Duthomhas]

It is because <conio.h> is old, flaky stuff. I will guess that the age of the compiler is causing behavioral problems with the OS.

Alas, the answer is not going to be to your liking: don't do that. If you must, then:

1. Make sure you upgrade to the most recent compiler. GCC is at version 9. MSVC is at 2019. Both are free and work well.

2. A. Get PDCurses
2. B. Use the Windows Console API directly.

If you google around "site:cplusplus.com duthomhas console" you will find a lot of hits about this stuff. Especially if you add the words "raw" and/or "echo".

Sorry.

[redfury]

umm, I just added an else condition after my "if" and it apparently is working well now.
It was I guess adding that delete key into a new node and that was causing the problem.
Anyway, thanks!