Thread: Movement with arrow keys

Hi I have been trying to create a program which movement is using the arrow keys, however i haven´t been succesful, I don´t know why this is not recognizing the arrow keys, i have even copied and tried to run the example in the FAQ, however, the only key it recognizes is the ESC key, it won't print anithing if I press the arrow keys, i would like to know if someone could help me to correct this because i have used another example program of how to use getch() and it doesn´t recognize the keys, it is supposed to print something for each key I press but for the arrows it will print nothing.

this is the code in the FAQ i have used:
[CODE]enum
{
KEY_ESC = 27,
ARROW_UP = 256 + 72,
ARROW_DOWN = 256 + 80,
ARROW_LEFT = 256 + 75,
ARROW_RIGHT = 256 + 77
};

static int get_code ( void )
{
int ch = getch();

if ( ch == 0 || ch == 224 )
ch = 256 + getch();

return ch;
}

int main ( void )
{
int ch;

while ( ( ch = get_code() ) != KEY_ESC ) {
switch ( ch ) {
case ARROW_UP:
printf ( "UP\n" );
break;
case ARROW_DOWN:
printf ( "DOWN\n" );
break;
case ARROW_LEFT:
printf ( "LEFT\n" );
break;
case ARROW_RIGHT:
printf ( "RIGHT\n" );
break;
}
}

return 0;
}
[/CODE)


And this is the example program of the C help on getch()

Code:

             /* getch example */

#include <conio.h>
#include <stdio.h>

int main(void)
{
  int c;
  int extended = 0;
  c = getch();
  if (!c)
     extended = getch();
  if (extended)
     printf("The character is extended\n");
  else
     printf("The character isn't extended\n");

  return 0;
}

I hope spmeone can help me, i have been trying to do this for three days.
Thx


My OS is win XP home

My Compiler is borland, I use Turbo C++ version 4.5

Does get_code return the same values wen you test it as in the enum?

Code:

#include <stdio.h>
#include <conio.h>

static int get_code ( void )
{
  int ch = getch();

  if ( ch == 0 || ch == 224 )
    ch = 256 + getch();

  return ch;
}

int main(void)
{
  int x;

  while ((x = get_code()) != 0x1B)
    printf("%d\n", x);

  return 0;
}

The actual scan codes may differ from system to system.

There is much about this which is OS and compiler specific, so details please.