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Requesting programmer assistance with custom indicator
Here is a code for creating the day candle in every time frame shifted by 5 candle. the candle is create by 4 histogram. I want to erase the previous created candle when the new candle is coming or when the time frame is changed. how can i do it?
Hi every one.
I wrote a simple code for illustration the volume of each bar (I know there is volume indicator in mt4 by default. i am writing the code to learn programming). but there is a warning while the code is compiled. and nothing will be illustrated on the chart. where is the problem an how can i fix it.
I wrote a simple code for illustration the volume of each bar (I know there is volume indicator in mt4 by default. i am writing the code to learn programming). but there is a warning while the code is compiled. and nothing will be illustrated on the chart. where is the problem an how can i fix it.
Inserted Code
#property copyright "Ali Mojtabaei."
#property link "https://telegram.me/mqlbyAliMojtabaei"
#property version "1.00"
#property strict
#property indicator_chart_window
#property indicator_buffers 1
double vol[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int OnInit()
{
IndicatorShortName("volume");
SetIndexBuffer(0,vol);
SetIndexStyle(0,DRAW_HISTOGRAM,STYLE_SOLID,2,clrRed);
return(INIT_SUCCEEDED);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
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[])
{
int prev=prev_calculated;
int totalbars=rates_total;
int limit=totalbars-prev;
if (limit>0)
limit--;
//---- main loop
for(int i=0; i<=limit; i++)
vol[i]=Volume[i];
return(rates_total);
} - #92
- Last Post: Apr 30, 2017 11:08am Apr 30, 2017 11:08am
- | Joined Jan 2016 | Status: Trader | 5 Posts
Hi every one. How can i fix the problem.
Here is an indicator that has two MA (Moving Average) buffers. I want to draw histogram between two buffers in separate window like the first figure but it draw complete histogram shown in second figure.
Here is an indicator that has two MA (Moving Average) buffers. I want to draw histogram between two buffers in separate window like the first figure but it draw complete histogram shown in second figure.
Inserted Code
//+------------------------------------------------------------------+
//| 41.mq4 |
//| Ali Mojtabaei. |
//| https://telegram.me/mqlbyAliMojtabaei |
//+------------------------------------------------------------------+
#property copyright "Ali Mojtabaei."
#property link "https://telegram.me/mqlbyAliMojtabaei"
#property version "1.00"
#property strict
#property indicator_chart_window
#property indicator_buffers 2
double A[], B[];
int i , limit;
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int OnInit()
{
SetIndexBuffer (0 , A);
SetIndexBuffer (1 , B);
SetIndexStyle (0 , DRAW_HISTOGRAM , STYLE_SOLID , 1 , clrYellow);
SetIndexStyle (1 , DRAW_HISTOGRAM , STYLE_SOLID , 1 , clrRed);
return(INIT_SUCCEEDED);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
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[])
{
limit = (rates_total - prev_calculated);
if (prev_calculated == 0)
limit--;
for (i=0 ; i<=limit ; i++)
{
A[i]=iMA(Symbol(),PERIOD_CURRENT,10,0,MODE_SMMA,PRICE_TYPICAL,i);
B[i]=iMA(Symbol(),PERIOD_CURRENT,100,0,MODE_SMMA,PRICE_TYPICAL,i);
}
SetIndexDrawBegin(0,100);
SetIndexDrawBegin(1,100);
return(rates_total);
}
//+------------------------------------------------------------------+