量化交易之MQL4篇 - MT4盘面上添加线、矩形、文本

#property copyright "Copyright 2018, MetaQuotes Software Corp."

#property link      "https://www.mql5.com"

#property version   "1.00"

#property strict

#property indicator_chart_window


int start() {

   

   //CreateColorRect("rect", High[2], Low[0], Red);

   

   /*

   string foo = DoubleToString(Bid, Digits);

   foo += foo;

   

   CreateText("text", Time[4], High[5], foo);

   */

   

   // CreateLine("line", High[0], Red); 

   

   return 0;

} 


void CreateColorRect(string objectName, double startValue, double endValue, color colorValue) {

   
   ObjectDelete(objectName);
   // Time[3]: left of rect.   startValue: top of rect.   Time[0]: right of rect.    endValue: bottom of rect;

   ObjectCreate(objectName, OBJ_RECTANGLE, 0, Time[3], startValue, Time[0], endValue);

   ObjectSet(objectName, OBJPROP_COLOR, colorValue);

   ObjectSet(objectName, OBJPROP_WIDTH, 1);

   ObjectSet(objectName, OBJPROP_STYLE, 0);

   // false: rect中间是透明的. true: rect中间不是透明的

   ObjectSet(objectName, OBJPROP_BACK, false);

   

}


void CreateText(string objectName, datetime timeValue, double dataValue, string stringValue) {

   

   ObjectDelete(objectName);

   // timeValue: middle of text is equal to middle of timeValue. dataValue: top of text is equal to top of dataValue.

   ObjectCreate(objectName, OBJ_TEXT, 0, timeValue, dataValue);

   ObjectSetText(objectName, stringValue, 10, "Arial", Yellow);

   

}


void CreateLine(string objectName, double data, color colorValue) {

   

   ObjectDelete(objectName);

   // data: top of line

   ObjectCreate(objectName, OBJ_HLINE, 0, 0, data);

   ObjectSet(objectName, OBJPROP_COLOR, colorValue);

   

}


int deinit(){


   ObjectsDeleteAll();

   

   return 0;

}