Reference TDrawImage

  TDrawImage = class(TSurfaceGraphicControl)
  protected
    { The color used when Colorized is true }
    procedure SetColor(Value: TColor); override;
    procedure Draw; override;
    { SharedImage if it is assigned, otherwise Image }
    property ComputeImage: TSurfaceBitmap read GetComputeImage;
  public
    { Create a new draw image }
    constructor Create(AOwner: TComponent); override;
    destructor Destroy; override;
    procedure GetPreferredSize(var PreferredWidth, PreferredHeight: integer; Raw: Boolean = False; WithThemeSpace: Boolean = True); override;
    { Discard the cached desaturated or colorized copy and repaint }
    procedure UpdateImage;
    { The area of the control covered by the image }
    property RenderArea: TRectI read GetRenderArea;
    { An image owned elsewhere which is drawn instead of Image when assigned }
    property SharedImage: TSurfaceBitmap read FSharedImage write SetSharedImage;
  published
    { The image to draw }
    property Image: TSurfaceBitmap read FImage write SetImage;
    { A rotation angle, currently unused when drawing }
    property Angle: Float read FAngle write SetAngle;
    { The image saturation from 0 for gray to 1 for full color }
    property Saturation: Float read FSaturation write SetSaturation;
    { When true the image is tinted using Color }
    property Colorized: Boolean read FColorized write SetColorized;
    { How the image is placed in the control }
    property Mode: TImageMode read FMode write SetMode;
    { The transparency of the image }
    property Opacity: Byte read GetOpacity write SetOpacity;
    property Align;
    property Anchors;
    property AutoSize;
    property BorderSpacing;
    property Constraints;
    property Color;
    property DragCursor;
    property DragMode;
    property Enabled;
    property OnChangeBounds;
    property OnClick;
    property OnDblClick;
    property OnDragDrop;
    property OnDragOver;
    property OnEndDrag;
    property OnDraw;
    property OnMouseDown;
    property OnMouseEnter;
    property OnMouseLeave;
    property OnMouseMove;
    property OnMouseUp;
    property OnMouseWheel;
    property OnMouseWheelDown;
    property OnMouseWheelUp;
    property OnResize;
    property OnStartDrag;
    property ParentShowHint;
    property PopupMenu;
    property ShowHint;
    property Visible;
  end;