IsDllsAllowed - Checkup - MQL4 Reference

MQL4 Reference Checkup IsDllsAllowed

IsDllsAllowed

Checks if the DLL function call is allowed for the Expert Advisor.

bool  IsDllsAllowed();

Returned value

Returns true if the DLL function call is allowed for the Expert Advisor, otherwise returns false.

Example:

  #import "user32.dll"
     int     MessageBoxA(int hWnd, string szText, string szCaption,int nType);
  ...
  ...
  if(IsDllsAllowed()==false)
    {
     Print("DLL call is not allowed. Experts cannot run.");
     return(0);
    }
  // expert body that calls external DLL functions
  MessageBoxA(0,"an message","Message",MB_OK);

See also

IsLibrariesAllowed(), IsTradeAllowed()