TCalculatorForm

type TCalculatorForm = class(TForm)

  class procedure WSRegisterClass; override;

WSRegisterClass - Register this Class for the current Widget Set

protected

  procedure OkClick();

OkClick - method to handle a click on th eOK button

  procedure CancelClick();

CancelClick - method to handle a click on the Cancel button

  procedure CalcKey();

CalcKey - method to handle activation of the specified calculator key

  procedure DisplayChange();

DisplayChange - method for handling a change in the calculator display

  procedure InitForm(); virtual;

InitForm - initialise the form, using the specified calculator layout

  property MainPanel: TPanel; [r]

The MainPanel of the Form, which can contain any sort of LCL components

  property CalcPanel: TPanel; [r]

The CalcPanel which displays the calculator

  property DisplayPanel: TPanel; [r]

The DisplayPanel within the calculator panel, that holds the numeric display

  property DisplayLabel: TLabel; [r]

The DisplayLabel for the calculator display

public

  constructor Create(); override;

Create - constructor for the whole form, not just the calculator

  constructor CreateLayout();

CreateLayout - constructor for the calculator panel using the specified layout

  property Value: Double; [rw]

Value - the numeric value, the result of the calculation, to be returned to the main program

end;

TCalculatorForm

TCalculatorForm - a normal form with a built-in calculator

TForm

TCustomForm

TCustomForm - the base type for TForm

TScrollingWinControl

TScrollingWinControl - a class of Window Control that has one or more scroll bars

TCustomControl

TCustomControl - a base class for many window controls

TWinControl

TControl

TLCLComponent

TLCLComponent - base class for LCL components

TComponent,IUnknown,IInterfaceComponentReference

TPersistent

TObject