Text/Code for conio.c and conio.h Files - modules.

Here is the main.c code/text

#include <stdio.h>

#include <stdlib.h>

#include "conio.h"

int main()

{

    gotoxy (10,10);

    printf("Hello world!\n");

    return 0;

}

Here is the conio.c code/text

#include <stdio.h>
#include <termios.h>    /* Linux System File */
/*************************************************************************
* Function:      gotoxy
* Parameters:    column - X, row - Y
* Description:   Moves printing position to specified screen/window location
*
* Returns:       Nothing
**************************************************************************/
void gotoxy(int x, int y)
{
    // This uses what's called an ANSI escape sequence to move the cursor
    // to a particular location in the window.
printf("\033[%d;%dH", y, x);
}

/*************************************************************************
* Function:      clrscr
* Parameters:    none
* Description:   Clears the "screen" (console printing area)
*
* Returns:       Nothing
**************************************************************************/
void clrscr()
{
    // This uses what's called an ANSI escape sequence to clear the
    // viewing portion of the terminal window.
    printf ("\033c");
}

/*************************************************************************
* Function:      getch()
* Parameters:    none
* Description:   Waits for a single key to be pressed, rather than needing
                 "Enter" or "Return" to be pressed - hence the jiggery pokery
* Returns:       The key code that was pressed.
**************************************************************************/
char getch(void)
{
      int c=0;

      struct termios org_opts, new_opts;
      int res=0;
      //-----  store old IO settings in a structure -----------
      res=tcgetattr(fileno(stdin), &org_opts);

      //Keep a copy:
      new_opts = org_opts;

      //Update the bits we're interested in
      new_opts.c_lflag &= ~(ICANON | ECHO | ECHOE | ECHOK | ECHONL | ECHOPRT | ECHOKE | ICRNL);

      //Put the settings into the system.
      tcsetattr(fileno(stdin), TCSANOW, &new_opts);
      //Check for a keypress
      c=getchar();
      //------  restore old settings ---------
      res=tcsetattr(fileno(stdin), TCSANOW, &org_opts);
      //assert(res==0);
      return(c);
}

Here is the conio.h code/text

void gotoxy(int x, int y);
void clrscr(void);
char getch(void);