2.4 Context data passed to UDI.onInit()

The UDI.onInit() function receives one parameter, data, which contains a single member, context, describing the current settings for the chart as a whole.

The same context data is also passed to all other UDI functions, including UDI.onCalculate().

The properties in data.context are as follows:

Property	Description
chartInstanceId	Temporary ID for the chart, not persisting across sessions
chartStyle	Descriptor for the type of chart: filled candle, hollow candle etc
indicatorId	ID allocated to the instance of your UDI on the chart, persisting across sessions and reloads of the chart
userId	Unique but anonymised ID for the logged-in user of the charting system
instrument	Description of the selected instrument and timeframe of the chart, containing the following properties.
instrument.symbol	ID for the selected market
instrument.symbolCaption	Display name for the selected market
instrument.timeframe	Timeframe of the chart, as either a number of seconds (e.g. 3600 for H1), or a negative value for a tick-chart (e.g. -30 for a T30 chart)
instrument.pipSize	"Pip" size of the market, e.g. 0.0001 on EUR/USD
instrument.multiplier	Multiplier applied to the chart prices, e.g. 10
instrument.invertPrices	Whether the user has selected to invert the chart prices
instrument.bid	Current bid price
instrument.ask	Current ask price
timezone	Object describing the user-selected time zone for the chart, with the following properties.
timezone.offset	Base number of minutes ahead of UTC (e.g. 120 for UTC+2)
timezone.dstMode	Daylight savings schedule: 0 = none; 1 = USA; 2 = Europe; 3 = Australia
isUDIX	Whether the UDI has been loaded with Framework access