Key Board Driver code implementation in C. Implementation of LEFT, RIGHT, BACKSPACE & DELETE keys

/*******************************************************************************
* Module Name : keyboard_driver.h
* Description : Contains function declarations for keyboard_driver.h
* AUTHOR      : Rajesh Sakkarai (srajeshinfotech@gmail.com)
* PHONE       : +91-9600635770, +91-8695642540
* Copyright(c)2013-2014, SRAJESHINFOTECH PVT LTD. All rights reserved.
*******************************************************************************/
#ifndef _KEYBOARD_DRIVER_

/* Normal non-display ascii Keys returned by ConsoleGetChar*/
#define REX_KEY_BELL        '\a'
#define REX_KEY_TAB        '\t'
#define REX_KEY_BACKSPACE    '\b'
#define REX_KEY_RETURN        '\r'
#define REX_KEY_NEWLINE        '\n'
#define REX_KEY_SPACE        ' '
#define    REX_KEY_ESCAPE        27
#define REX_KEY_ASCII_DEL    127
#define REX_KEY_ESC_SEQ        '['        /* Used in Terminal Escape Sequence */


/* Special non-ascii Keys returned by ConsoleGetChar*/
#define REX_KEY_UP        0xFF00
#define REX_KEY_DOWN        0xFF01
#define REX_KEY_LEFT        0xFF02
#define REX_KEY_RIGHT        0xFF03

#define REX_KEY_PGUP        0xFF10
#define REX_KEY_PGDN        0xFF11

#define REX_KEY_DEL        0xFF20
#define REX_KEY_INS        0xFF21

#define REX_KEY_HOME        0xFF30
#define REX_KEY_END        0xFF31

#define REX_KEY_F1        0xFF80
#define REX_KEY_F2        0xFF81
#define REX_KEY_F3        0xFF82
#define REX_KEY_F4        0xFF83

/* Check the following values are correct for WIN32/DOS */
#define REX_KEY_F5        0xFF84
#define REX_KEY_F6        0xFF85
#define REX_KEY_F7        0xFF86
#define REX_KEY_F8        0xFF87
#define REX_KEY_F9        0xFF88
#define REX_KEY_F10        0xFF89
#define REX_KEY_F11        0xFF8A
#define REX_KEY_F12        0xFF8B

#define SSH_BACKSPACE        127

#define PROMPT_STR_LEN        0
// Maximum Line Width of console
#define LINE_LEN        250
#define MAX_CMD_SIZE        255


void OpenConsole(int rawmode);
void ConsoleClear(void);
void CloseConsole(void);
unsigned short GetCmdLine(char *CmdLine, unsigned short Index, int isPassword);
void GetWindowSize(void);
void HandleWindowResize(int signal);
void ConsolePutStr(char *Str);