//+------------------------------------------------------------------+ //| Volumes.mq5 | //| Copyright 2009, MetaQuotes Software Corp. | //| http://www.mql5.com | //+------------------------------------------------------------------+ #property copyright "2009, MetaQuotes Software Corp." #property link "http://www.mql5.com" //---- indicator settings #property indicator_separate_window #property indicator_buffers 2 #property indicator_plots 1 #property indicator_type1 DRAW_COLOR_HISTOGRAM #property indicator_color1 Green,Red #property indicator_style1 0 #property indicator_width1 1 #property indicator_minimum 0.0 //--- input data input ENUM_APPLIED_VOLUME InpVolumeType=VOLUME_TICK; // Volumes input int vol = 5000; //---- indicator buffers double ExtVolumesBuffer[]; double ExtColorsBuffer[]; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ void OnInit() { //---- buffers SetIndexBuffer(0,ExtVolumesBuffer,INDICATOR_DATA); SetIndexBuffer(1,ExtColorsBuffer,INDICATOR_COLOR_INDEX); //---- name for DataWindow and indicator subwindow label IndicatorSetString(INDICATOR_SHORTNAME,"Volumes"); //---- indicator digits IndicatorSetInteger(INDICATOR_DIGITS,0); //---- } //+------------------------------------------------------------------+ //| Volumes | //+------------------------------------------------------------------+ int OnCalculate(const int rates_total, const int prev_calculated, const datetime &time[], const double &open[], const double &high[], const double &low[], const double &close[], const long &tick_volume[], const long &volume[], const int &spread[]) { //---check for rates total if(rates_total<2) return(0); //--- starting work int start=prev_calculated-1; //--- correct position if(start<1) start=1; //--- main cycle if(InpVolumeType==VOLUME_TICK) CalculateVolume(start,rates_total,tick_volume); else CalculateVolume(start,rates_total,volume); //--- OnCalculate done. Return new prev_calculated. return(rates_total); } //+------------------------------------------------------------------+ //| | //+------------------------------------------------------------------+ void CalculateVolume(const int nPosition, const int nRatesCount, const long &SrcBuffer[]) { ExtVolumesBuffer[0]=(double)SrcBuffer[0]; ExtColorsBuffer[0]=0.0; //--- for(int i=nPosition;idPrevVolume) ExtColorsBuffer[i]=0.0; else ExtColorsBuffer[i]=1.0; } //--- } //+------------------------------------------------------------------+