压缩包目录结构：
MQL4/
MQL4/Experts/
MQL4/Experts/测试点击按钮调用指定脚本.mq4
MQL4/Libraries/
MQL4/Libraries/fxplug.dll
MQL4/Scripts/
MQL4/Scripts/策汇脚本测试.mq4
必须读我.txt
策汇在线.url

MQL4/Experts/测试点击按钮调用指定脚本.mq4代码片段：
//+------------------------------------------------------------------+
//|                                     测试点击按钮调用指定脚本.mq4 |
//|                        Copyright 2020, MetaQuotes Software Corp. |
//|                                             https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright     "Copyright 2021  策汇在线 http://www.fxchs.com."
#property link          "https://www.fxchs.com"
#property description   " "
#property description   "测试点击按钮调用指定脚本，有定制需求联系客服"
#property description   " "
#property description   "策汇在线：http://www.fxchs.com  QQ：1204225539"
#property version       "1.00"

#import "fxplug.dll"

// 打开个连接
bool RunScript(string);

#import

//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
int OnInit() {
//---

// 创建一个测试下单按钮
   DrawButton("Button_FXPlug",clrWhite,60,60,"点击调用脚本 【策汇脚本测试】，有定制需求联系客服",480,"策汇在线 http://www.fxchs.com",C'220,0,0',48,13);


//---
   return(INIT_SUCCEEDED);
}
//+------------------------------------------------------------------+
//| Expert deinitialization function                                 |
//+------------------------------------------------------------------+
void OnDeinit(const int reason) {
//---

   // 删除对象
   ObjectDelete("Button_FXPlug");

}
//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
void OnTick() {
//---

}
//+------------------------------------------------------------------+



// 图表对象事件
void OnChartEvent(const int id,
                  const long &lparam,
                  const double &dparam,
                  const string &sparam) {
   // 对象被点击了
   if(id==CHARTEVENT_OBJECT_CLICK) {
      if(sparam=="Button_FXPlug") {    // 升级
         RunScript("策汇脚本测试");
      }
   }
}


// 画按钮
void DrawButton(string name,color yanse,int x,int y,string text,int length=0,string tooltip="",color clr=clrDarkGray,int height=25,int fontsize=10) {
   if(ObjectFind(name)<0) {
      ObjectCreate(0,name,OBJ_BUTTON,0,0,0);
      ObjectSetInteger(0,name,OBJPROP_COLOR,yanse);
      ObjectSetInteger(0,name,OBJPROP_BGCOLOR,clr);
      ObjectSetInteger(0,name,OBJPROP_XDISTANCE,x);
      ObjectSetInteger(0,name,OBJPROP_YDISTANCE,y);
      if(length==0) {
         int as=StringLen(text);
         ObjectSetInteger(0,name,OBJPROP_XSIZE,as*16);
      } else {
         ObjectSetInteger(0,name,OBJPROP_XSIZE,length);
         //ObjectSetInteger(0,name,OBJPROP_YSIZE,1215);
      }
      ObjectSetInteger(0,name,OBJPROP_YSIZE,height);
      ObjectSetString(0,name,OBJPROP_FONT,"Microsoft YaHei");
      ObjectSetString(0,name,OBJPROP_TEXT,text);
      ObjectSetInteger(0,name,OBJPROP_FONTSIZE,fontsize);
      ObjectSetInteger(0,name,OBJPROP_BORDER_COLOR,C'220,220,220');
      ObjectSetString(0,name,OBJPROP_TOOLTIP,tooltip+"\n");
      ObjectSetInteger(0,name,OBJPROP_CORNER,CORNER_LEFT_UPPER);
      ObjectSet(name,OBJPROP_ZORDER,9999);
      ObjectSet(name,OBJPROP_SELECTABLE,false);
      ObjectSet(name,OBJPROP_SELECTED,false);
   }
}
//+------------------------------------------------------------------+