Header File 

conio.h  

Category 

Console I/O Routines 

Prototype 

int getche(void); 

Description 

Gets character from the keyboard, echoes to screen. 

getche reads a single character from the keyboard and echoes it to the current text window using direct video or BIOS.

getche returns the character read from the keyboard. 

Example  

#include <stdio.h>
#include <conio.h>
int main(void)
{
   char ch;
   printf("Input a character:");
   ch = getche();
   printf("\nYou input a '%c'\n", ch);
   return 0;
}

Portability