Thread: Add arrow signals

Hi funyoo,

Could anyone add an arrow alert when the candle closes over/under the cloud, red for down and lime for up...thanks champs

Cheers.

Originally Posted by funyoo

Here is an explanation about how to add arrow signals to your indicator. As you will see, it's more complicated than adding a sound alert. You have to know the base of coding, although you don't need to be an expert.

In the header of your indicator, add this :

Code:

#property  indicator_chart_window
#property indicator_buffers 2
#property indicator_color1 Blue
#property indicator_color2 Red

Then after the main extern parameters, add this :

Code:

extern bool  ArrowsSignal = true;

int limit=1;int counter;
double CrossUp[];
double CrossDown[];
double prevtime;
double Range, AvgRange;

Your init iteration should look like this :

Code:

int init()
{
   SetIndexStyle(0, DRAW_ARROW, EMPTY, 2);
   SetIndexArrow(0, 233);
   SetIndexBuffer(0, CrossUp);
   SetIndexStyle(1, DRAW_ARROW, EMPTY, 2);
   SetIndexArrow(1, 234);
   SetIndexBuffer(1, CrossDown);
   
   return(0);
}

int deinit()
{
   return(0);
}

In your code you have to create the conditions or to identify them if they already exist. Like : if(EMA5>EM15){ alert(...

After that you will be able to build the code that will say where the arrows have to be drawn :

Here is an example :

Code:

for(int i=1;i<=limit;i++){
   
counter=i;
Range=0;
AvgRange=0;
   
for (counter=i ;counter<=i+9;counter++)
     {
      AvgRange=AvgRange+MathAbs(High[counter]-Low[counter]);
}
   
Range=AvgRange/10;

if(EMA5>EMA15){if(ArrowsSignal == true)CrossUp[i] = Low[i] - Range*0.5;}

if(EMA5<EMA15){if(ArrowsSignal == true)CrossDown[i] = High[i] + Range*0.5;}

if ((CrossUp[0] > 2000) && (CrossDown[0] > 2000)) { prevtime = 0; }
if ((CrossUp[0] == Low[0] - Range*0.5) && (prevtime != Time[0]))
    {
     prevtime = Time[0];
}
if ((CrossDown[0] == High[0] + Range*0.5) && (prevtime != Time[0]))
    {
     prevtime = Time[0];
}
}