Mt4/mql4 getting started to mastering EA tutorial lesson 5 - common functions of MQL language (V) - common functions of account information

bool IsConnected();

Check whether the connection between the client and the server is normal

The script instance

//+------------------------------------------------------------------+
//| Script program start function |
//+------------------------------------------------------------------+
void OnStart() 
  {
     
   if(!IsConnected()) 
    {
     
     Print(" The connection fails !");  
    } 
    else Print(" The connection is normal !");  
  }

Running results

Manually disconnect , To run a

Show connection failure

This function is used to check whether the network connection is normal , Whether the server is disconnected

bool IsDemo();

This function is used to detect whether the account is simulated

void OnStart() 
  {
     
   if(IsDemo()) Print(" This is a mock account ！");
    else Print(" This is not a simulated account !");  
  }

Running results

bool IsExpertEnabled();

This function is used to detect whether automatic transaction is allowed ;

The script instance

void OnStart() 
  {
     
   if(IsExpertEnabled())  Print(" Allow automatic transactions ！");
    else Print(" Automatic transactions are not allowed !");  
  }
  

Turn off automatic transactions

Run the script

Turn on automatic transaction , Run the script

A good workman does his work well , You must sharpen your tools first , The most important thing in trading is to follow the rules , Strictly carry out . Official account , Study MQL Beginner to master EA course , Learn more EA Programming , Write your own EA, Forge your own magic weapon .