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  Argument
 
    color    Integer expression representing the new foreground color
 
  Description
 
    The TextColor procedure sets the foreground color for character
    display. The current display remains unchanged. Any subsequent
    text output is in the new foreground color. This procedure can
    also set the bit for blinking text display.
 
    The Crt unit defines the variable TextAttr. TextAttr holds the
    current foreground color in bits 0-3; the possible values are in
    the range 0..15. Crt defines the possible colors as constants
    that can be passed to TextColor. TextColor sets TextAttr to the
    new foreground color.
 
    Bit 7 enables or disables blinking. Crt defines the constant Blink
    as the value 128. To turn blinking on, add Blink to the color
    being passed to TextColor:
 
       TextColor( color + Blink );
 
    In addition, any value for color greater than 15 turns
    blinking on.
 
    If the color argument is out of range, TextColor uses only the
    low bits and no error occurs.
 
    If the chosen text color matches the current background color,
    subsequent character output is invisible.