arrows only show 1 direction

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The arrows here are only shown in one direction. Any ideas where the error is?


//+------------------------------------------------------------------+
//|                                             100_200MAs_Alert.mq4 |
//|                      Copyright © 2011, MetaQuotes Software Corp. |
//|                                        http://www.metaquotes.net |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2011, MetaQuotes Software Corp."
#property link      "http://www.metaquotes.net"

#property indicator_chart_window
double CrossUp[];
double CrossDown[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- indicators
   SetIndexStyle(0, DRAW_ARROW, EMPTY);
   SetIndexArrow(0, 233);
   SetIndexBuffer(0, CrossUp);
   SetIndexStyle(1, DRAW_ARROW, EMPTY);
   SetIndexArrow(1, 234);
   SetIndexBuffer(1, CrossDown);

//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//----
   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {
   int    counted_bars=IndicatorCounted();
//----
   
   double MA100 = iMA(NULL, PERIOD_H1, 100, 0, MODE_SMMA, PRICE_CLOSE, 0);
   double MA200 = iMA(NULL, PERIOD_H1, 200, 0, MODE_SMMA, PRICE_CLOSE, 0);
   if (
         iClose(NULL, PERIOD_H1, 1) < MA100 &&
         iClose(NULL, PERIOD_H1, 2) >= MA100 &&
         GlobalVariableGet(Symbol()+"MAAlert") < iTime(NULL,PERIOD_H1,0)  
      ) 
   {
      Alert(Symbol()+" bearish");
      GlobalVariableSet(Symbol()+"MAAlert", iTime(NULL,PERIOD_H1,0));   
   }
   
   if (
         iClose(NULL, PERIOD_H1, 1) > MA100 &&
         iClose(NULL, PERIOD_H1, 1) <= MA100 &&
         GlobalVariableGet(Symbol()+"MAAlert") < iTime(NULL,PERIOD_H1,0)  
      ) 
   {
      Alert(Symbol()+" bullish");
      GlobalVariableSet(Symbol()+"MAAlert", iTime(NULL,PERIOD_H1,0));   
   }
   
   int limit, i, counter; 
   //int counted_bars=IndicatorCounted();
   if(counted_bars<0) return(-1);
   if(counted_bars>0) counted_bars--;
   limit=Bars-counted_bars;
   for(i = 0; i <= limit; i++)
   {
      MA100 = iMA(NULL, PERIOD_H1, 100, 0, MODE_SMMA, PRICE_CLOSE, i);
      //MA200 = iMA(NULL, PERIOD_H1, 200, 0, MODE_SMMA, PRICE_CLOSE, i+1);
      if (iClose(NULL, PERIOD_H1, i) < MA100 && iClose(NULL, PERIOD_H1, i+1) >= MA100) {CrossDown[i] = Close[i];}
      if (iClose(NULL, PERIOD_H1, i) > MA100 && iClose(NULL, PERIOD_H1, i+1) <= MA100) {CrossUp[i] = Close[i];}
   }
   return(0);
  }
//+------------------------------------------------------------------+
 

set cd[i] and cu[i] to EMPTY_VALUE at the start of the loop?

replace PERIOD_H1 with 0 so indicator works on the attached chart?

 

It is still only showing up arrows, no down arrows:


//+------------------------------------------------------------------+
//|                                             100_200MAs_Alert.mq4 |
//|                      Copyright © 2011, MetaQuotes Software Corp. |
//|                                        http://www.metaquotes.net |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2011, MetaQuotes Software Corp."
#property link      "http://www.metaquotes.net"

#property indicator_chart_window
double CrossUp[];
double CrossDown[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- indicators
   SetIndexStyle(0, DRAW_ARROW, EMPTY);
   SetIndexArrow(0, 233);
   SetIndexBuffer(0, CrossUp);
   SetIndexStyle(1, DRAW_ARROW, EMPTY);
   SetIndexArrow(1, 234);
   SetIndexBuffer(1, CrossDown);

//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//----
   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {
   int    counted_bars=IndicatorCounted();
//----
   
   double MA100 = iMA(NULL, 0, 100, 0, MODE_SMA, PRICE_CLOSE, 0);
   double MA200 = iMA(NULL, 0, 200, 0, MODE_SMA, PRICE_CLOSE, 0);
   if (
         iClose(NULL, 0, 1) < MA100 &&
         iClose(NULL, 0, 2) >= MA100 &&
         GlobalVariableGet(Symbol()+"MAAlert") < iTime(NULL,0,0)  
      ) 
   {
      Alert(Symbol()+" bearish");
      GlobalVariableSet(Symbol()+"MAAlert", iTime(NULL,0,0));   
   }
   
   if (
         iClose(NULL, 0, 1) > MA100 &&
         iClose(NULL, 0, 1) <= MA100 &&
         GlobalVariableGet(Symbol()+"MAAlert") < iTime(NULL,0,0)  
      ) 
   {
      Alert(Symbol()+" bullish");
      GlobalVariableSet(Symbol()+"MAAlert", iTime(NULL,0,0));   
   }
   
   int limit, i, counter; 
   //int counted_bars=IndicatorCounted();
   if(counted_bars<0) return(-1);
   if(counted_bars>0) counted_bars--;
   limit=Bars-counted_bars;
   for(i = 0; i <= limit; i++)
   {
      CrossUp[i] = EMPTY_VALUE;
      CrossDown[i] = EMPTY_VALUE;
   
      MA100 = iMA(NULL, 0, 100, 0, MODE_SMA, PRICE_CLOSE, i);
      //MA200 = iMA(NULL, PERIOD_H1, 200, 0, MODE_SMMA, PRICE_CLOSE, i+1);
      if (iClose(NULL, 0, i) < MA100 && iClose(NULL, 0, i+1) >= MA100) {CrossDown[i] = Close[i];}
      if (iClose(NULL, 0, i) > MA100 && iClose(NULL, 0, i+1) <= MA100) {CrossUp[i] = Close[i];}
   }
   return(0);
  }
//+------------------------------------------------------------------+
 

SanMiguel: It is still only showing up arrows, no down arrows:


Hi SanMiguel,

I compared your code with another indicator and it looks like you need to set your Buffers to 2. You have no Buffers set and it defaults to 1.

#property indicator_buffers 2

I also added color and width to make it easier to see. You can adjust them as you need.

#property indicator_color1 Aqua
#property indicator_width1 3
#property indicator_color2 Magenta
#property indicator_width2 3



Hope this helps,

Robert

 
any ideas why it needs to be recompiled on every restart for it to work?
 
SanMiguel:
any ideas why it needs to be recompiled on every restart for it to work?
did you install in "\program files" on vista/win7
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