The canvas from which to acquire context (platform specific)
The chart options
Registers the specified listener on the given chart.
Chart from which to listen for event
The (ChartEvent) type to listen for
Receives a notification (an object that implements the ChartEvent interface) when an event of the specified type occurs.
the current devicePixelRatio of the device this platform is connected to.
The canvas for which to calculate the maximum size
the maximum size available.
true if the canvas is attached to the platform, false if not.
Called at chart destruction time, releases any resources associated to the context previously returned by the acquireContext() method.
The context2d instance
true if the method succeeded, else false
Removes the specified listener previously registered with addEventListener.
Chart from which to remove the listener
The (ChartEvent) type to remove
The listener function to remove from the event target.
Updates config with platform specific requirements
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Called at chart construction time, returns a context2d instance implementing the W3C Canvas 2D Context API standard.