How to run a paid indicator from the Market in your Strategy Tester

For example, you find the Uniform Moving Price Range indicator that is sold in the Market. First, download it to the terminal by clicking "Download demo".

After the download, the indicator is available in the "Market" folder. But you cannot run it on the chart, since you've downloaded the demo version of a paid product. The "Ok" button is missing.

Demo versions cannot run on the chart, because otherwise no one would buy them. However, before buying a product, the Buyer can see it on the visual testing chart in the strategy tester. All you need is a simple Expert Advisor that calls this indicator. To call the indicator with the default parameters, you need to know its name. In this case its name is shown in the Navigator - Uniform_Moving_Price_Range_demo.

Use the #define macro to specify the name of the indicator that will be used in the Expert Advisor for testing. Create the market_indicator macro specifying the \Market folder, in which the indicator is located.

#define market_indicator "Market\\Uniform_Moving_Price_Range_demo"

Create an indicator using the iCustom(_Symbol, _Period, market_indicator) function, where market_indicator is used as an ordinary string constant. After creating the indicator, check its handle.

//+------------------------------------------------------------------+
//|                                   Test_Indicator_from_Market.mq5 |
//|                        Copyright 2012, MetaQuotes Software Corp. |
//|                                              http://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2012, MetaQuotes Software Corp."
#property link      "http://www.mql5.com"
#property version   "1.00"

#define market_indicator "Market\\Uniform_Moving_Price_Range_demo"
int indicator_handle;
//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
int OnInit()
  {
//--- An attempt to create an indicator
   indicator_handle=iCustom(_Symbol,_Period,market_indicator);
//--- An invalid handle means problems with an indicator
   if(indicator_handle==INVALID_HANDLE)
     {
      Print("Failed to create indicator ",market_indicator,". Error ",GetLastError());
      return(-1);
     }
//--- Initialization has completed successfully, return 0
   return(0);
  }
//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
void OnTick()
  {
//---

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

Run the Expert Advisor in the strategy tester on the desired symbol and timeframe in the visual testing mode.

The indicator appears on the chart, and its values are shown in the Data Window.

Thus, you can try the demo version of any paid indicator from the Market - just download the attached template and write the name of the indicator that you have downloaded to the terminal from the Market. After that, run the resulting Expert Advisor in the strategy tester in the visual mode.