• int MLRand(int min, int max)
• bool MLFileExists(string FileName)
• string MLComputerID()
• string MLMACID()
• int MLMt4ToFront()
• int MLOpenBrowser(string URL)
• int MLChartToFront(int hwnd)
• int MLStartTicker(int hwnd, int period)
• int MLStopTicker(int hwnd,int period)
• int MLLinkAdd(int hwnd, int parent, string text, string URL)
• int MLLinkRemoveAll(int root)
• int MLLinkRemoveAll(int root)
• string MLGetWinDir()
• string MLGetTempDir()
• string MLGetAppdataDir()
• string MLGetHomeDir()
• string MGetSystemDriveL()
• string MLGetProgramFilesDir()
• string MLShellExecute(string command, bool hidden)
• string MLVersion()
• int MLLastError()

• int MLRVInit(string AUTH)
• int MLRVClose(int handle)
• int MLRVInt(int handle, string VarName)
• double MLRVDouble(int handle, string VarName)
• string MLRVString(int handle, string VarName)
• bool MLRVBool(int handle, string VarName)
• datetime MLRVDate(int handle, string VarName)
• bool MLRVExists(int handle, string VarName)

MLRand returns a random Value between min and max. MQL has MathRand which returns a random value but the problem is this value is between 0 and 32767 and we think this is not well implemented Randomizing function. Thats why we have made this replacement. MLL MLRand function is able to return Random values negative, positive and also values over 32767!

//-- MLRand Demonstration
for(int i=0;i<300;i++) 
       Print("Random between -55555 and +55555. Iteration #"+i+" Returned: ", MLRand(-55555,55555));

This function accepts a FileName as Parameter and returns a boolean to determine if given FileName exists or not. MQL Does not have a native FileExists function, even if it would exist it would be jailed around files/ folder and you would not be able to check existence of files outside MT4 Directories. MLL FileExists function is designed to fill this gap.

if (MLFileExists("c:\\Windows\\SysWOW64\\user32.dll")) Print("You have x64 Based Windows"); 	

Returns a string as ComputerID also known as CID from current computer. You can use this function to get unique ID per Computer. CID has been defined by Fx1 Inc to have a unique ID per computer. We do detect CID based on computer configuration, user configuration. This function returns a string value.

Print("Your ComputerID/CID is: "+MLComputerID());

Returns a string of current MAC address.

Print("Your MACID is: "+MLMACID());

This function brings MT4 Terminal to Front. Imagine sometimes you want to display something very important to use of your Project, in such cases you can call this function and Terminal Window will get to Front and user will be informed via some notification such as Alert().

   if ((Bid-Ask)<10*Point)
      {      
      MLMt4ToFront();
      Alert("Spread is very low now, time to Trade!");
      }

Use this function to open any URL from your Project. MLOpenBrowser will call users default browser with given URL.

int deinit()
{
   // We will open users browser with given url at the end of Expert Advisor
   // To Display latest news about this Expert Advisor
   MLOpenBrowser("http://my.company/product/deinit.php");    
}

Of course this function can be used everywhere in your code but anyways be carefully please. If you call this function too often this may cause users computer get blocked due to load. URL needs to start with http:// or https://, mailto: is also supported

This function brings the Chart to Front inside same Terminal. Imagine user has 5 charts open and if user is used to use maximized charts then user will have only 1 chart visible. You can use MLChartToFront function to bring the Chart with your Project to front. Use this function to indicate important actions.

   if (TimeToTrade==true)
      {      
      MLChartToFront(hwnd);
      Alert("Trade Now! ");
      }

MLStartTicker & MLStop Ticker are working together. These functions send ticks to defined Terminal in given Periods. Stop Function stops the ticks. Period is defined in miliseconds and minimum valus is 200. Below you see a demonstration how to use Ticker Feature effectively. You should never forget to Stop the Ticker. Calling multiple Tickers inside same Project is not allowed.

// DLL Imports
#import "mll.dll"
   int MLStartTicker(int hwnd, int period);  // Start automatic ticker, returns a handle
   int MLStopTicker(int hwnd, int handle);   // Stop ticker from given handle
#import

int handle=0;
int ticks=0;
int hwnd=0;

int init()
  {
     hwnd = WindowHandle(Symbol(),Period());          
     handle=MLStartTicker(hwnd,500);  
     if (handle>0) Print("Ticker has been started successfully"); else Print("Ticker could not be started");
     return(0);
  }

int deinit()
  {
   // We must stop the Ticker at the end of EA
   if (handle>0)  MLStopTicker(hwnd,handle);   
   return(0);
  }


int start()
  {
   ticks++;    // We count the ticks per Tick
   Comment("Tick Count :",ticks);   
   return(0);
  }

Here you can see this code in Action.

MLLink Functions are designed to add Links to MT4 Terminals Navigation Window. This unique Feature gives you the power to Add Links to Terminal. See Screenshoot on Left side to understand ML Link Feature. As you see ML Link Feature is able to make Terminal Window Modifications and improve interaction with Clients.

Every link has a parent and parent nodes are not clickable. Parent nodes has to have 0 in second parameter and empty URL. URLs support http://, https:// and mailto: tags. So its possible to open users default email client using ML Link Feature.

Its very important to remove Links from Chart inside deinit() or whenever you dont need them anymore. To remove all links you simply call MLLinkRemoveAll() function with handle of parent. Calling MLLinkAdd to start a new parent returns a handle which is unique for every Parent. You have to define this as global Variable in MQL to be able to call same parameter with MLLinkRemoveAll.

We think Demonstration Code will tell you everything about MLL Link Feature:

// DLL Imports
#import "mll.dll"
   int MLLinkAdd( int hwnd, int parent, string text, string link );
   int MLLinkRemoveAll( int root );
#import

int parent1=0;
int parent2=0;
int ticks=0;
int hwnd=0;

int init()
  {
     hwnd = WindowHandle(Symbol(),Period());          
     // Lets Build our Links at start

   
     // ----  PARENT 1  
     // Parent Link has parent = 0 and link should be kept empty ("")
     // Lets add the Parent
     parent1 = MLLinkAdd(hwnd,0,"Super EA","");     
     // Lets add Sub Links
     MLLinkAdd(hwnd,parent1,"Contact Support","mailto: support@fx1.net");
     MLLinkAdd(hwnd,parent1,"Product Support","http://superea.com");
     MLLinkAdd(hwnd,parent1,"Google","http://google.com");
     MLLinkAdd(hwnd,parent1,"Buy other EA","http://fx1.collective2.com");                         
     
     // ----  PARENT 2 
     parent2 = MLLinkAdd(hwnd,0,"Useful Links","");     
     // Lets add Sub Links     
     MLLinkAdd(hwnd,parent2,"Fx1 Code Library","https://fx1.net/cl.php");
     MLLinkAdd(hwnd,parent2,"MQL4 Forum","http://www.mql4.com");     
     MLLinkAdd(hwnd,parent2,"Recent Forex News","http://www.forexfactory.com");


  }
 
int deinit()
  {
  if (parent1>0) MLLinkRemoveAll(parent1);
  if (parent2>0) MLLinkRemoveAll(parent2);
  }


int start()
  {
   ticks++;    // We count the ticks per Tick
   Comment("Tick Count :",ticks);   
   return(0);
  }

returns %windir% , %temp%, %appdata%, %homepath%, %systemdrive% and %programfiles% paths as string. These paths are shortcuts to some important Windows paths.

  // Read Windows Environment Directories
  Print("Windows Directory : "+MLGetWinDir());
  Print("Temp Directory : "+MLGetTempDir());
  Print("Adddata Directory : "+MLGetAppdataDir());
  Print("Home Directory : "+MLGetHomeDir());
  Print("System Directory : "+MLGetSystemDrive());
  Print("ProgramFiles Directory : "+MLGetProgramFilesDir());

You can execute commands using this function. The state input accepts a boolean which indicates that the execution should be hidden or not. The state is only working for DOS/Shell Commands, not for native Windows software.

  // Lets open Microsoft Windows Notepad
  string notepadpath = MLGetWinDir()+"\\system32\\notepad.exe";
  MLShellExecute(notepadpath,true);

Important: always use state=true for windows applications

This function returns current ML Library version you are running. In some cases your clients may run older ML Library DLL files. You may capture this problem by comparing the versions

This function returns Last Error occoured in MQLLock Library Routines. Here is all possible return values listed: