Close[0] contains the actual bar and its value is changing after the fluctuations chart. See the next pictures:
A very simple mql4 code to verify the precedent explanation (copy and compile in your Metaeditor):
//+------------------------------------------------------------------+ //| probe_probe.mq4 | //| Copyright 2014, Farcas Adrian | //| http://www.mql5.com | //+------------------------------------------------------------------+ #property copyright "Copyright 2014, Farcas Adrian" #property link "http://www.mql5.com" #property version "1.00" #property strict //+------------------------------------------------------------------+ //| Expert initialization function | //+------------------------------------------------------------------+ int OnInit() { //--- //--- return(INIT_SUCCEEDED); } //+------------------------------------------------------------------+ //| Expert deinitialization function | //+------------------------------------------------------------------+ void OnDeinit(const int reason) { //--- } //+------------------------------------------------------------------+ //| Expert tick function | //+------------------------------------------------------------------+ void OnTick() { //--- Comment( " Bars ", Bars, "\n", " Time[0] ", Time[0], "\n", " Open[0] ", Open[0], "\n", " High[0] ", High[0], "\n", " Low[0] ", Low[0], "\n", "Close[0] ", Close[0], "\n", "Volume[0] ", Volume[0], "\n" ); //Sleep(30000); ////---- wait for 30 seconds } //+------------------------------------------------------------------+
