Overview
 Function  VideoWriteAddress(X1,Y1:Word):Pointer
 Procedure InitVideoCards
 Procedure SetVirtualScreen (XSize,YSize:Word)
 Procedure ScreenOrigin     (X,Y:Word)
 Procedure PositionCursor
 Procedure GotoXY           (X,Y:Word)
 Function  WhereX           :Word
 Function  WhereY           :Word
 Procedure ClrScr
 Procedure ClrEOL
 Procedure DelLine
 Procedure InsLine
 Procedure TextMode         (AL:Byte;BX,CX,DX:Word)
 Procedure TextColor        (Forg:Byte)
 Procedure TextBackground   (Backg:Byte)
 Procedure VideoColor       (Forg,Backg:Byte)
 Procedure HighVideo
 Procedure LowVideo
 Function  BackgroundColor  :Byte
 Function  ForgroundColor   :Byte
 Procedure Window           (X1,Y1,X2,Y2:Word)
 Procedure WriteChr         (Charac:Char)
 Procedure WriteStr         (Line:String)
 Procedure WriteStrLn       (Line:String)
 Procedure ReadStr          (X,Y:Word;MaxLets:Byte;Upper:Boolean;
 Procedure EditStr          (X,Y:Word;MaxLets:Byte;Upper:Boolean;
 Procedure Pad              (Count:Word;WithChar:Char)
 Procedure Barometer        (X,Y:Word;MaxLen:Byte;WithMe:Char; ...
 Procedure FillBlock        (X1,Y1,X2,Y2:Word;WithChar:Char)
 Function  TextImageSize    (X1,Y1,X2,Y2:Word):LongInt
 Procedure GetTextImage     (X1,Y1,X2,Y2:Word;Data:Pointer)
 Procedure PutTextImage     (X1,Y1:Word;Data:Pointer)
 Procedure WindowToVScreen  (Var X1,Y1:Integer)
 Procedure WindowToVScreen4 (Var X1,Y1,X2,Y2:Integer)
 Procedure ScreenToVScreen  (Var X1,Y1:Integer)
 Procedure ScreenToVScreen4 (Var X1,Y1,X2,Y2:Integer)