HTML5 Canvas Element.
This is a wrapper around the HTML5 Canvas element.
This only works with an HTML5 browser that supports the Canvas element.
Fallback HTML content to display. This is diplayed in browsers that do not support the Canvas element. property onrender as
onrender event handler: This event is fired by the render method and can supply the content displayed by this component. As a convenience, the event is passed an argument, context, which is the graphic context of the canvas element.
Subclasses implement this in order to render the static HTML contents of a component.
Returns null if the browser does not support the canvas element.
Set the value of a named property.