Identify TW3Canvas object. Canvas object provide set of functions such as Ellipse that may be used for drawing complex objects.
property Canvas: TW3Canvas read FCanvas;
TW3Canvas provide indirect access to the HTML5 CANVAS element which is created when control is created.
Provide access to Context object associated with Canvas.
property Context: TW3CustomGraphicContext read FContext;
Provide access to DC object.
property DC: THandle read GetDC;
Called when component is repainted. Descendants may override this method and place drawing code.
procedure Paint; virtual;
Insert Paint call into queue.
procedure Invalidate; override;
Immediately call Paint method.
If BeginUpdate method is called, call will be ignored.
Occurs when Paint method is called.
property OnPaint: TPaintEvent read FOnPaint write FOnPaint;