The standard OnTick() handler allows to receive the ticks for only one symbol. For multicurrency experts you need the ticks for several symbols. In some cases it's necessary to recieve the ticks for all symbols from"Market Watch" window.
The Expert Advisor exOnTickMarketWatch.mq5 uses the standard custom event handler of OnChartEvent() function, it provides the following information:
Launch the scOnTickMarketWatch.mq5 script to receive the ticks from "Market Watch" window.
P.S. It has been published at Russian forum.
Translated from Russian by MetaQuotes Software Corp.
Original code: https://www.mql5.com/ru/code/209
The indicator shows the trend and allows to see a price range.i-OrdersMQL5
The indicator shows deals history on the chart.