freepascal.compiler/docs/mouseex/ex5.pp

Program Example5;

{ Program to demonstrate the HideMouse function. }

Uses mouse;

Var
  Event : TMouseEvent;
  Visible: Boolean;
  
begin
  InitMouse;
  ShowMouse;
  Visible:=True;
  Writeln('Press left mouse button to hide/show, right button quits');
  Repeat
   GetMouseEvent(Event);
   With Event do
     If (Buttons=MouseLeftbutton) and 
        (Action=MouseActionDown) then
       begin 
       If Visible then 
         HideMouse
       else
         ShowMouse;  
       Visible:=Not Visible;  
       end;  
  Until (Event.Buttons=MouseRightButton) and
        (Event.Action=MouseActionDown);
  DoneMouse;
end.