Delphi-PRAXiS - [Lazarus] manuelles Zeichnen von TCalendar

Hi,

ich versuche gerade der TCalendar-Komponente der LCL zu entlocken, wo bzw wie sie malt, um die Klasse ableiten und einige Änderungen/Erweiterungen einzubauen. Allerdings komme ich nicht ganz dahinter, wo die Komponente sich malt.
Das Interface der TCustomCalendar sieht so aus:

Delphi-Quellcode:

			  TCustomCalendar = class(TWinControl)

  private

    FDateAsString : String;

    FDate: TDateTime; // last valid date

    FDisplaySettings : TDisplaySettings;

    FOnChange: TNotifyEvent;

    FReadOnly: Boolean;

    FDayChanged: TNotifyEvent;

    FMonthChanged: TNotifyEvent;

    FYearChanged: TNotifyEvent;

    FPropsChanged: boolean;

    function GetDateTime: TDateTime;

    function ReadOnlyIsStored: boolean;

    procedure SetDateTime(const AValue: TDateTime);

    procedure SetReadOnly(const AValue: Boolean);

    Procedure GetProps;

    Procedure SetProps;

    function GetDisplaySettings: TDisplaySettings;

    procedure SetDisplaySettings(const AValue: TDisplaySettings);

    function GetDate: String;

    procedure SetDate(const AValue: String);

  protected

    procedure LMChanged(var Message: TLMessage); message LM_CHANGED;

    procedure LMMonthChanged(var Message: TLMessage); message LM_MONTHCHANGED;

    procedure LMYearChanged(var Message: TLMessage); message LM_YEARCHANGED;

    procedure LMDayChanged(var Message: TLMessage); message LM_DAYCHANGED;

    class function GetControlClassDefaultSize: TPoint; override;

  public

    constructor Create(TheOwner: TComponent); override;

    destructor Destroy; override;

    procedure Loaded; override;

    procedure InitializeWnd; override;

    property Date: String read GetDate write SetDate stored false;

    property DateTime: TDateTime read GetDateTime write SetDateTime;

    property DisplaySettings: TDisplaySettings read GetDisplaySettings write SetDisplaySettings;

    property ReadOnly: Boolean read FReadOnly write SetReadOnly stored ReadOnlyIsStored;

    property OnChange: TNotifyEvent read FOnChange write FOnChange;

    property OnDayChanged: TNotifyEvent read FDayChanged write FDayChanged;

    property OnMonthChanged: TNotifyEvent read FMonthChanged write FMonthChanged;

    property OnYearChanged: TNotifyEvent read FYearChanged write FYearChanged;

  end;

Vielleicht weiß ja jemand wo da gemalt wird :gruebel: