Overview
 Procedure Init         (Installed:Boolean)
 Procedure Show
 Procedure Hide
 Procedure SetSpeed     (Mousems:Byte)
 Procedure SetShape     (Shape:Pointer)                       (Non-BGI)
 Procedure SetShape     (Shape:Pointer)                       (BGI)
 Procedure SetXY        (X,Y:Word)
 Procedure SetBounds    (X1,Y1,X2,Y2:Word)
 Procedure GetPresses   (Var X,Y:Word; Var Button:Byte; ...
 Procedure GetXY        (Var X,Y:Word)
 Procedure GetStatus    (Var X,Y:Word; Var Left,Right,Middle:Boolean)
 Procedure GetClick     (Var X1, Y1, X2, Y2:Word; ...
 Function  ComputerSpeed:LongInt
 Function  Active:Boolean
 Procedure ControlMouse