//+------------------------------------------------------------------+
//|                                                 Sample10_Ind.mq4 |
//|                                     Copyright ｩ 2006, Toyolab FX |
//|                                         http://forex.toyolab.com |
//+------------------------------------------------------------------+
#property copyright "Copyright ｩ 2006, Toyolab FX"
#property link      "http://forex.toyolab.com"

#property indicator_chart_window
#property indicator_buffers 4

//---- パラメータ
extern int FastMA_Period = 10;
extern int SlowMA_Period = 20;

//---- インディケータバッファ
double BufFastMA[];
double BufSlowMA[];
double BufBuy[];
double BufSell[];

//+------------------------------------------------------------------+
//| インディケータ初期化関数                                         |
//+------------------------------------------------------------------+
int init()
{
//---- バッファのインディケータへの割り当て
   SetIndexBuffer(0, BufFastMA);
   SetIndexBuffer(1, BufSlowMA);
   SetIndexBuffer(2, BufBuy);
   SetIndexBuffer(3, BufSell);

//---- データウィンドウのラベル
   SetIndexLabel(0,"FastMA");
   SetIndexLabel(1,"SlowMA");
   SetIndexLabel(2,"BuySignal");
   SetIndexLabel(3,"SellSignal");

//---- インディケータの種類の設定
   SetIndexStyle(0, DRAW_LINE, STYLE_SOLID, 1, Red);
   SetIndexStyle(1, DRAW_LINE, STYLE_SOLID, 1, Blue);

//---- インディケータの種類の設定（Buyシグナル）
   SetIndexStyle(2, DRAW_ARROW, STYLE_SOLID, 1, Blue);
   SetIndexArrow(2,233);
   SetIndexEmptyValue(2,0);

//---- インディケータの種類の設定（Sellシグナル）
   SetIndexStyle(3, DRAW_ARROW, STYLE_SOLID, 1, Red);
   SetIndexArrow(3,234);
   SetIndexEmptyValue(3,0);

   return(0);
}
//+------------------------------------------------------------------+
//| インディケータ処理関数                                           |
//+------------------------------------------------------------------+
int start()
{
   int limit=Bars-IndicatorCounted();

   for(int i=limit-1; i>=0; i--)
   {
      BufFastMA[i] = iMA(NULL,0,FastMA_Period,0,MODE_SMA,PRICE_CLOSE,i);
      BufSlowMA[i] = iMA(NULL,0,SlowMA_Period,0,MODE_SMA,PRICE_CLOSE,i);
      if(BufFastMA[i+1] <= BufSlowMA[i+1] && BufFastMA[i] > BufSlowMA[i]) BufBuy[i] = Close[i];
      if(BufFastMA[i+1] >= BufSlowMA[i+1] && BufFastMA[i] < BufSlowMA[i]) BufSell[i] = Close[i];
   }

   return(0);
}
//+------------------------------------------------------------------+