Reference THuePicker

  THuePicker = class(TCustomColorControl)
  protected
    function GetColorValue: TColorB; override;
    procedure SetColorValue(Value: TColorB); override;
    procedure Notification(AComponent: TComponent; Operation: TOperation); override;
    procedure Change; override;
    procedure ChangeMouse(X, Y: Integer); override;
    procedure Draw; override;
  public
    { Create a new hue picker }
    constructor Create(AOwner: TComponent); override;
    destructor Destroy; override;
  published
    { A saturation picker whose hue is kept in sync with this picker }
    property SaturationPicker: TSaturationPicker read FSaturationPicker write SetSaturationPicker;
    { The selected hue from 0 to 1 }
    property Hue: Float read FHue write SetHue;
    { Draw as a bar or a wheel }
    property Style: THueStyle read FStyle write SetStyle default hsRadial;
    property Align;
    property Anchors;
    property BorderSpacing;
    property Constraints;
    property DragCursor;
    property DragKind;
    property DragMode;
    property Enabled;
    property ParentShowHint;
    property OnChange;
    property OnChangeBounds;
    property OnDragDrop;
    property OnDragOver;
    property OnDblClick;
    property OnEndDock;
    property OnEndDrag;
    property OnMouseDown;
    property OnMouseEnter;
    property OnMouseLeave;
    property OnMouseMove;
    property OnMouseUp;
    property OnMouseWheel;
    property OnMouseWheelDown;
    property OnMouseWheelUp;
    property OnPaint;
    property OnResize;
    property OnStartDock;
    property OnStartDrag;
    property ShowHint;
    property Visible;
  end;