1 /**

     2  *  $Id: keyboard.c 53 2008-01-10 00:19:41Z mbroeker $

     3  * $URL: http://localhost/svn/c/VirtualReader/trunk/src/keyboard.c $

     4  */

     5 

     6 #include <keyboard.h>

     7 

     8 char getSingleKey ()

     9 {

    10     // read and return single key with 1 second timeout

    11 

    12     struct termios new_settings;

    13     struct termios stored_settings;

    14     int timeout = 1;            // 1 sec timeout

    15     char c;

    16 

    17     tcgetattr (0, &stored_settings);

    18     new_settings = stored_settings;

    19 

    20     new_settings.c_lflag &= ~(ICANON | ECHO);

    21 

    22     new_settings.c_cc[VTIME] = timeout * 10;

    23     new_settings.c_cc[VMIN] = 0;

    24     tcsetattr (0, TCSANOW, &new_settings);

    25 

    26     fflush (stdout);

    27     c = getchar ();

    28 

    29     tcsetattr (0, TCSANOW, &stored_settings);

    30 

    31 #ifdef DEBUG

    32     if (isalpha (c))

    33         printf ("received keypress: %c\n", c);

    34 #endif

    35     return c;

    36 }