Function            ansiback - convert DOS background code to ANSI

  Syntax              int ansiback(char code);

  Prototype in        ansihk.h

  Remarks             DOS and ANSI use different values for colors. This
                      function converts a DOS background color code to
                      the ANSI color code for the same color.

  Return value        returns the ANSI background color code

  See also            ansi_call(), ansifore()