Run script from MQL5 indicator code

[Ahmed Soliman]

Hi,

This code used to work in MT4 and it was working in MT5 but not anymore.

It's the code that execute another program ex:Script from the code.

Is there anyone who know how to make it work in MQL5?

#import "user32.dll"
   int RegisterWindowMessageW(string MessageName);
   int SendMessageW (int hwnd, int msg, int wparam, char &Name[]);
   void keybd_event(int VirtualKey, int ScanCode, int Flags, int ExtraInfo);   
#import
//*------------------------------------------------------------------*
//STARTS A METATRADER PROGRAM
int StartProgram(int hWnd, string ProgramName, string ProgramType="Expert", bool AutomaticallyAcceptDefaults=true)
{  
   char pn[256];
   StringToCharArray(ProgramName , pn);
   
   int InternalMessageNumber = RegisterWindowMessageW("MetaTrader4_Internal_Message");
   
   int msg_number = 14;
   if(ProgramType=="Expert") msg_number = 14;
   if(ProgramType=="Indicator") msg_number = 15;
   if(ProgramType=="Script") msg_number = 16;
   
   int result = SendMessageW (hWnd, InternalMessageNumber, msg_number, pn);
   
   return(result);   
}
//*------------------------------------------------------------------*

[Asa Social]

did you find the solution? 

I have the same problem 

thanks

[Michael Charles Schefe]

Asa Social #:

did you find the solution? 

I have the same problem 

thanks

you responded to a 5 year msg.

[skrantz71]

Not quite sure what you want to do,

But here are code for useing Windows API user32.dll and shell32 to get an messagebox and execute external application / notepad...

// Import the MessageBoxW function from user32.dll
#import "user32.dll"
int MessageBoxW(int hWnd, string lpText, string lpCaption, int uType);
#import

// Import the ShellExecuteW function from shell32.dll (Unicode version)
#import "shell32.dll"
int ShellExecuteW(int hWnd, string lpOperation, string lpFile, string lpParameters, string lpDirectory, int nShowCmd);
#import

// Windows API constants for button types and return values
#define MB_YESNO  4      // Displays Yes and No buttons.
#define IDYES     6      // Returned if the user clicks Yes.
#define IDNO      7      // Returned if the user clicks No.

//+------------------------------------------------------------------+
//| Script program start function                                    |
//+------------------------------------------------------------------+
void OnStart()
{
   // Create a message to display
   string msg = "Do you want to launch Notepad?";
   
   // Call the MessageBoxW function with MB_YESNO to display Yes/No buttons.
   int result = MessageBoxW(0, msg, "Launch Notepad", MB_YESNO);
   
   // Check the return value to see which button was clicked
   if(result == IDYES)
   {
      // Launch Notepad.exe using ShellExecuteW
      int execResult = ShellExecuteW(0, "open", "notepad.exe", "", "", 1);
      
      if(execResult > 32)
         Print("Notepad opened successfully.");
      else
         Print("Failed to open Notepad. Error code: ", execResult);
   }
   else if(result == IDNO)
   {
      Print("User chose not to launch Notepad.");
   }
   else
   {
      Print("Unexpected return value: ", result);
   }
}

and an URL, Remember to add to to trusted site in settings in MQL5.

// Import the MessageBoxW function from user32.dll
#import "user32.dll"
int MessageBoxW(int hWnd, string lpText, string lpCaption, int uType);
#import

// Import the ShellExecuteW function from shell32.dll (Unicode version)
#import "shell32.dll"
int ShellExecuteW(int hWnd, string lpOperation, string lpFile, string lpParameters, string lpDirectory, int nShowCmd);
#import

// Windows API constants for button types and return values
#define MB_YESNO  4      // Displays Yes and No buttons.
#define IDYES     6      // Returned if the user clicks Yes.
#define IDNO      7      // Returned if the user clicks No.

//+------------------------------------------------------------------+
//| Script program start function                                    |
//+------------------------------------------------------------------+
void OnStart()
{
   // Create a message to display
   string msg = "Do you want to run the external command?";
   
   // Call the MessageBoxW function with MB_YESNO to display Yes/No buttons.
   int result = MessageBoxW(0, msg, "Execute External Program", MB_YESNO);
   
   // Check the return value to see which button was clicked
   if(result == IDYES)
   {
      // Use ShellExecuteW to open the URL with Unicode strings
      int execResult = ShellExecuteW(0, "open", "https://www.mql5.com", "", "", 1);
      
      if(execResult > 32)
         Print("URL opened successfully.");
      else
         Print("Failed to open URL. Error code: ", execResult);
   }
   else if(result == IDNO)
   {
      Print("User clicked NO. Stop trading.");
   }
   else
   {
      Print("Unexpected return value: ", result);
   }
}