Overview

    The PTUIVCRT unit is  a  replacement  unit  for  CRT.  It is the Pure
    Power Text User Interface Virtual Cathode Ray Tube Unit.

    If you require procedures non-CRT  related  such as ReadKey, you will
    still have to use CRT.  Make sure  that  you place CRT before PTUICRT
    in the uses clause.

    Example

    Uses CRT,PTUI,PTUIVCRT

    This unit will allow you to use  Super  VGA  text modes, virtual text
    modes (such as 160x50 on a normal 80x25  screen) and smooth scrolling
    for the virtual screens.   At  the  same  time  it can also support a
    dual monitor system.

    The units contains a large  amount  of assembly for speed and is thus
    very fast.  You can also disable  the  cursor  position being updated
    (cursor positioning is done with  the  BIOS) and this will also speed
    up your code.