Thread: Movement with arrow keys

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  1. #1
    Registered User
    Join Date
    Aug 2004
    Posts
    66

    Movement with arrow keys

    Hi I have been trying to create a program which movement is using the arrow keys, however i havenīt been succesful, I donīt 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 doesnīt 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
    Last edited by louis_mine; 02-06-2005 at 04:44 PM.

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