Reference TIndeterminateProgress

  TIndeterminateProgress = class(TSurfaceGraphicControl)
  protected
    procedure Notification(AComponent: TComponent; Operation: TOperation); override;
    procedure Draw; override;
    procedure FontChanged(Sender: TObject); override;
    procedure TextChanged; override;
  public
    { Create a new progress indicator }
    constructor Create(AOwner: TComponent); override;
    destructor Destroy; override;
  published
    { The current status }
    property Status: TProgressStatus read FStatus write SetStatus default psReady;
    { Animation frames shown while busy, or nil to use the defaults }
    property BusyImages: TImageStrip read FBusyImages write SetBusyImages;
    { Status icons starting with psReady, or nil to use the defaults }
    property StatusImages: TImageStrip read FStatusImages write SetStatusImages;
    { Milliseconds between busy animation frames }
    property BusyDelay: Cardinal read GetBusyDelay write SetBusyDelay default 30;
    { Where the icon is placed relative to the text }
    property IconPosition: TIconPosition read FIconPosition write SetIconPosition default icNear;
    { When not empty this text is shown with the help icon instead of the
      caption }
    property Help: string read FHelp write SetHelp;
    property Align;
    property Anchors;
    property BidiMode;
    property BorderSpacing;
    property Caption;
    property Constraints;
    property DragCursor;
    property DragKind;
    property DragMode;
    property Font;
    property ParentBidiMode;
    property ParentFont;
    property ParentShowHint;
    property PopupMenu;
    property ShowHint;
    property Visible;
    property OnChangeBounds;
    property OnClick;
    property OnContextPopup;
    property OnDblClick;
    property OnDragDrop;
    property OnDragOver;
    property OnEndDrag;
    property OnMouseDown;
    property OnMouseEnter;
    property OnMouseLeave;
    property OnMouseMove;
    property OnMouseUp;
    property OnMouseWheel;
    property OnMouseWheelDown;
    property OnMouseWheelUp;
    property OnResize;
    property OnStartDrag;
  end;