Account restriction
Here is some sample code for various restrictions to be applied on an EA, including that of a Account number. Just set the variables according to your requirements:
//+------------------------------------------------------------------------------------+ // Variables for Handling of Licensing Restrictions //+------------------------------------------------------------------------------------+ bool boolRestrictExpiration = false, // Set to true, to use an Expiration Date boolRestrictAccountNumber = false, // Set to true for Restricting by Account Number boolRestrictAccountName = false, // Set to true for Restricting by Account Name boolRestrictAccountServer = false, // Set to true for Restricting by Account Server boolRestrictAccountCompany = false, // Set to true for Restricting by Account Company boolRestrictDemoAccount = false, // Set to true, to only allow Demo Accounts boolRestrictSymbols = false, // Set to true, to only allow certain Symbols boolRestrictAlert = true; // Display Alert Message when Restrictions apply datetime dtRestrictExpiration = D'2016.12.31'; // Restricted by Expiration Date long longRestrictAccountNumber = 123456789; // Restricted by Account Number string strRestrictAccountName = "Client Name", // Restricted by Account Name strRestrictAccountServer = "Server Name", // Restricted by Account Server strRestrictAccountCompany = "Company Name", // Restricted by Account Company strRestrictSymbols[] = { "EURUSD", "GBPJPY", "NZDCAD" }, // Restricted Symbols strRestrictAlertCaption = "Restrictions", // Alert Message Box Caption strRestrictAlertMessage = "ATTENTION! Due to Licensing Restrictions, code execution has been blocked!"; // Message to be used when Restrictions have been detected //+------------------------------------------------------------------------------------+ // Function to Test Restrictions during Initialisation //+------------------------------------------------------------------------------------+ bool boolRestrictOnInit() { if( boolRestrictAccountNumber ) { if( AccountInfoInteger( ACCOUNT_LOGIN ) != longRestrictAccountNumber ) { voidRestrictAlert(); return( true ); } } if( boolRestrictAccountName ) { if( AccountInfoString( ACCOUNT_NAME ) != strRestrictAccountName ) { voidRestrictAlert(); return( true ); } } if( boolRestrictAccountServer ) { if( AccountInfoString( ACCOUNT_SERVER ) != strRestrictAccountServer ) { voidRestrictAlert(); return( true ); } } if( boolRestrictAccountCompany ) { if( AccountInfoString( ACCOUNT_COMPANY ) != strRestrictAccountCompany ) { voidRestrictAlert(); return( true ); } } if( boolRestrictDemoAccount ) { if( AccountInfoInteger( ACCOUNT_TRADE_MODE ) != ACCOUNT_TRADE_MODE_DEMO ) { voidRestrictAlert(); return( true ); } } if( boolRestrictSymbols() ) { voidRestrictAlert(); return( true ); } return( boolRestrictOnTick() ); } //+------------------------------------------------------------------------------------+ // Function to Test Variations of Restricted Symbols //+------------------------------------------------------------------------------------+ bool boolRestrictSymbols() { if( boolRestrictSymbols ) { int intSymbolCount = ArraySize( strRestrictSymbols ); if( intSymbolCount == 0 ) return( false ); for( int i = 0; i < intSymbolCount; i++ ) { if( StringFind( _Symbol, strRestrictSymbols[i] ) != EMPTY ) return( false ); int intLen = StringLen( strRestrictSymbols[i] ), intHalf = intLen / 2; string strLeft = StringSubstr( strRestrictSymbols[i], 0, intHalf ), strRight = StringSubstr( strRestrictSymbols[i], intHalf, intLen - intHalf ); if( ( StringFind( _Symbol, strLeft ) != EMPTY ) && ( StringFind( _Symbol, strRight ) != EMPTY ) ) return( false ); } return( true ); } return( false ); } //+------------------------------------------------------------------------------------+ // Function to Test Expiration during Tick Events //+------------------------------------------------------------------------------------+ bool boolRestrictOnTick() { if( boolRestrictExpiration ) { if( TimeCurrent() >= dtRestrictExpiration ) { voidRestrictAlert(); return( true ); } } return( false ); } //+------------------------------------------------------------------------------------+ // Function to Alert User of Licensing Restrictions and Remove Code from Execution //+------------------------------------------------------------------------------------+ void voidRestrictAlert() { if( boolRestrictAlert ) MessageBox( strRestrictAlertMessage, strRestrictAlertCaption, MB_ICONERROR ); ExpertRemove(); } //+------------------------------------------------------------------------------------+ // Initialisation Event Function //+------------------------------------------------------------------------------------+ int OnInit() { // Check Licensing Restrictions if( boolRestrictOnInit() ) return( INIT_FAILED ); // ... other code ... return( INIT_SUCCEEDED ); // Initialisation complete } //+------------------------------------------------------------------------------------+ // Tick Event Function //+------------------------------------------------------------------------------------+ void OnTick() { // Check Licensing Restrictions if( boolRestrictOnTick() ) return; // ... other code ... } //+------------------------------------------------------------------------------------+
Here is some sample code for various restrictions to be applied on an EA, including that of a Account number. Just set the variables according to your requirements:
Dear what i wrote actually worked in another source code but not working here. Did i write this in wrong function? Please identify mistake.
Dear what i wrote actually worked in another source code but not working here. Did i write this in wrong function? Please identify mistake.
int OnInit() { if( AccountNumber() != 105293 ) return( INIT_FAILED ); // ... other code ... return( INIT_SUCCEEDED ); }
Thanks..
If the EA is running and you login to an other account, the EA will still continue to work.
If the EA is running and you login to an other account, the EA will still continue to work.
I could be wrong, but according to the "Uninitialization Reason Codes", I don't think that will happen because MT4 will reload the EA when there is a Change in Account, Chart Symbol or Time-frame. So, in essence the OnInit() function will be called again with the new Account Number.
However, if I am wrong, then he just needs to add the verification to the OnTick() event.
For Indicators, however, it seems this does not apply and they do not undergo a OnDeinit/OnInit cycle with a change in Account and in this case, the verification of the account number will have to be checked in one of the other event functions such as OnCalculate(), OnTimer() or OnChartEvent().
I could be wrong, but according to the "Uninitialization Reason Codes", I don't think that will happen because MT4 will reload the EA when there is a Change in Account, Chart Symbol or Time-frame. So, in essence the OnInit() function will be called again with the new Account Number.
However, if I am wrong, then he just needs to add the verification to the OnTick() event.
For Indicators, however, it seems this does not apply and they do not undergo a OnDeinit/OnInit cycle with a change in Account and in this case, the verification of the account number will have to be checked in one of the other event functions such as OnCalculate(), OnTimer() or OnChartEvent().
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{
if(AccountNumber()!=105293)
return(0);
}