【MQL4】トレンドライン・水平線の価格を取得する方法｜ObjectGetValueByShiftで失敗した原因と解決策

//+------------------------------------------------------------------+
//|                                                         test.mq4 |
//|                        Copyright 2020, MetaQuotes Software Corp. |
//|                                             https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2020, MetaQuotes Software Corp."
#property link      "https://www.mql5.com"
#property version   "1.00"


//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
int OnInit()
  {
//---
   
//---
   return(INIT_SUCCEEDED);
  }
//+------------------------------------------------------------------+
//| Expert deinitialization function                                 |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
  {
//---
   
  }
  
// エントリー関数
void OnTick()
{
   //トレンドラインを引く（斜め線）
   ObjectDelete(0,"T_LINE");
   ObjectCreate(0,"T_LINE",OBJ_TREND,0,Time[40],Close[40],Time[10],Close[10]);      
   ObjectSetInteger(0,"T_LINE",OBJPROP_COLOR,clrYellow);
   ObjectSetInteger(0,"T_LINE",OBJPROP_STYLE,STYLE_SOLID);
   ObjectSetInteger(0,"T_LINE",OBJPROP_WIDTH,2);
   ObjectSetInteger(0,"T_LINE",OBJPROP_RAY_RIGHT,true);
   
   //水平線を引く
   ObjectDelete(0,"H_LINE");
   ObjectCreate(0,"H_LINE",OBJ_HLINE,0,0,iLow(NULL, 0, 0)); 
   ObjectSetInteger(0,"H_LINE",OBJPROP_COLOR,clrRed);
   ObjectSetInteger(0,"H_LINE",OBJPROP_STYLE,STYLE_DOT);   
   ObjectSetInteger(0,"H_LINE",OBJPROP_WIDTH,2);
   
   //各オブジェクトの値を取得する
   double Sh_T = ObjectGetValueByShift("T_LINE", 0);
   double OG_T = ObjectGet("T_LINE",OBJPROP_PRICE1);
   
   double Sh_H = ObjectGetValueByShift("H_LINE", 0);
   double OG_H = ObjectGet("H_LINE",OBJPROP_PRICE1);

   Print("トレンドライン①" + Sh_T);
   Print("トレンドライン②" + OG_T);
   Print("水平ライン①" + Sh_H);
   Print("水平ライン②" + OG_H);

}

   //トレンドラインを引く（斜め線）
   ObjectDelete(0,"T_LINE");
   ObjectCreate(0,"T_LINE",OBJ_TREND,0,Time[40],Close[40],Time[10],Close[10]);      
   ObjectSetInteger(0,"T_LINE",OBJPROP_COLOR,clrYellow);
   ObjectSetInteger(0,"T_LINE",OBJPROP_STYLE,STYLE_SOLID);
   ObjectSetInteger(0,"T_LINE",OBJPROP_WIDTH,2);
   ObjectSetInteger(0,"T_LINE",OBJPROP_RAY_RIGHT,true);
   
   //水平線を引く
   ObjectDelete(0,"H_LINE");
   ObjectCreate(0,"H_LINE",OBJ_HLINE,0,0,iLow(NULL, 0, 0)); 
   ObjectSetInteger(0,"H_LINE",OBJPROP_COLOR,clrRed);
   ObjectSetInteger(0,"H_LINE",OBJPROP_STYLE,STYLE_DOT);   
   ObjectSetInteger(0,"H_LINE",OBJPROP_WIDTH,2);

   //各オブジェクトの値を取得する
   double Sh_T = ObjectGetValueByShift("T_LINE", 0);
   double OG_T = ObjectGet("T_LINE",OBJPROP_PRICE1);
   
   double Sh_H = ObjectGetValueByShift("H_LINE", 0);
   double OG_H = ObjectGet("H_LINE",OBJPROP_PRICE1);

   Print("トレンドライン①" + Sh_T);
   Print("トレンドライン②" + OG_T);
   Print("水平ライン①" + Sh_H);
   Print("水平ライン②" + OG_H);