Running with Excel                      TWSLink

' check first if prior registered
Ret = Cells(Row, ColUID).Value
If Ret > 0 Then
    ' cancel market data
    Ret = TwsLink.REQ_MARKET_DATA(Ret, 0, "",0)
    Cells(Row, ColLocSym).Value = ""
End If
Ret = TL().REGISTER_CONTRACT(Cells(Row, 2).Value, Cells(Row, 3).Value, Cells(Row, 4).Value, Cells(Row, 5).Value, "", Cells(Row, 7).Value, "", 0, "", 0)
Cells(Row, ColUID).Value = Ret
If Ret > 0 Then
    ' save row for uid
    Ret2 = TL().SETLONGVAR(CStr(Ret), Row)

Running with Visual Basic .NET

Private Sub btRequestMarketData_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btRequestMarketData.Click

' NOTE: market_data_1 (make the request to get realtime to our contract registered)
If _uid <= 0 Then
    MessageBox.Show("You need to register contract first, before requesting market data")
    Exit Sub
End If

Dim ret As Long

' for parameter info please see TWSLink/documentation/twslinkmanual.htm function REQ_MARKET_DATA
ret = TL().REQ_MARKET_DATA(_uid, 1, "", -1)
End Sub

Running with Trade Station

If MarketPosition = 0 Then begin
    If Sig < 0 Then begin { section 1.1 }
        Sell ("MR_SE") This Bar on Close;
        if Timeout = 0 then begin
            Print("pos before short: "+NumToStr(GET_POSITIONS(UidContract,""),0));
            CUSTOMCOMMENT("Enter Short",0);
            { place sell order, dont transmit to IB}
            Oid1=PLACE_ORDER(UidContract,0,"SELL","MKT",OrderSize,0.0,0.0,"GTC",0,-1,"","",-1);

Running with eSignal EFS

function register_Option_Contracts(symbol,sectype,exchange,expiry,right,strike) {
debugPrintln("************Excuting register_Option_Contracts()*********");
// register contract
OPT_CALL_ID = twslink.call("REGISTER_CONTRACT", symbol, sectype, "USD", "NYSE", "", expiry,right, strike, "",0);
debugPrintln("************ Option CONTRACT_ID = " + OPT_CALL_ID);
// check if contract has been accepted
contract_accepted = twslink.call("WAIT_FOR_ACCEPTED",OPT_CALL_ID,5000);

// ok
if(contract_accepted > 0)
{
    debugPrintln("TWS accepted OPT_Call_ID="+OPT_CALL_ID);
}
// pending
else if(contract_accepted >= -1)
{
    debugPrintln("Pending accpet OPT_Call_ID="+OPT_CALL_ID);
}
// no ok. check your contract spec again
else
{
    Error_TWS_Rejected_Contract();
    ret = 0;
}
 

Running with AmiBroker

// Create a TWSLink instance
TWSLink = CreateStaticObject("twslink.comif");
// init the DLL (Optional)
TWSLink.INITDLL(2,"twslink.log",6,3,3,4000);
// register microsoft Contract for trading
ID_MSFT = TWSLink.REGISTER_CONTRACT("MSFT", "STK","USD","SMART","","","",0.0,"",0);
// connect to TWS
TWSLink.CONNECT("127.0.0.1", 7496, 4, 5000);
// place order and transmit to IB
OidID = TWSLink.BUY_LMT(ID_MSFT, 0,20.77, 100, "GTC", 1);
// just wait one second to demonstrate the impact
TWSLink.WAITDLL(1000);
// modify order (here prior returned OidID provided) and transmit to IB
OidID = TWSLink.BUY_LMT(ID_MSFT, OidID ,21.77, 100, "GTC", 1);
 

Running with MatLab

if calllib('twslink', 'WAIT_FOR_TICK',-1,20000) > 0
    ticktype = 0;
    % process all avaiable ticks
    while ticktype >= 0
        ticktype = calllib('twslink', 'GET_TICK',uid,-1);
        switch ticktype
        case DF_ASK
            current = calllib('twslink', 'GET_MARKET_DATA',uid,ticktype,0,1)
            pipDiff = tcifhelper(lastEntry,current,minTick);
            % go long (since last entry, market moved n pips down)
            if pipDiff < -triggerPips
            action = 'BUY';

Running with Perl

# get current positions
$pos=$tws->GET_CONTRACT_VAL($ContractUID,8,"","");
$PositionsTable{$ContractUID}=$pos;

# --- pull the next quote from stack ---
# -----------------------------------------------------
# NOTE: last paremeter is 1, what means get latest tick
# and reset this event.
# -----------------------------------------------------
my $primarytype = $tws->GET_TICK($ContractUID,1) ;
if($primarytype >= 0)
{
    # update bid, last, ask on every tick (regardless which type of tick)
    $bid = $tws->GET_MARKET_DATA($ContractUID,1,0,1) ;
    $ask = $tws->GET_MARKET_DATA($ContractUID,2,0,1) ;

Running with Python

elif next_size > 0:
    oids_pips[idofcontract] = tws.PLACE_ORDER(idofcontract,0,"BUY","MKT",next_size,0.0,0.0,"GTC",1,0,"","",-1);
    o_states[idofcontract]=tws.WAIT_FOR_ORDER_STATUS(oids_pips[idofcontract],9,1500,12);
    print str(ident_dict[idofcontract]).ljust(48) + "++ BUY ++ " + str(next_size);
    # cancel order if not filled within 1.5 seconds
    if o_states[idofcontract] <> 9:
        tws.CANCEL_ORDER(oids_pips[idofcontract],0,"");
        print "cancel order...";

Running with Wealth-Lab

var UID : integer;
var lib: ComVariant;
const MONEY = 10000.0;
const BIG_NUMBER = 9999;
const FORCE_BUY = 0.0;

//this will initialize twslink
procedure TWSLink_Init();
begin
    var iret : integer;

    lib := CreateOleObject('twslink.comif');
    iret := lib.INITDLL(2, 'c:\twslinkdll_wl.log', 6, 5, 3, 4000);
    iret := lib.CONNECT('127.0.0.1', 7496, 4, 5000);

end;

//mintick of contract
function get_mintick(contractuid : integer): float;
begin
    var i : integer;
    var mintick : float;

    mintick := lib.GET_CONTRACT_VAL(contractuid ,20,'',''); //20 is = 'MINTICK'
    print('MINTICK of '+GetSymbol+' is: '+FloatToStr(mintick));
    Result := mintick;
end;

Running with RUBY

# event market data tick
if eventcategory == "1"
    # get context
    uid = $tws.GET_EVENT_VAL(uidevent,4)
    # price tick
    if uid == "1"
        # get id associated with event, which is here an uid
        uid = $tws.GET_EVENT_VAL(uidevent,2)
        # get the ticktype
        primarytype = $tws.GET_EVENT_VAL(uidevent,3)
        ShowData(uid.to_i,primarytype.to_i)
    end
    # other event
else
    ShowEvent(uidevent,eventcategory)
end

Running with C# (.NET)

private void UpdateBidDepStatistic(int uidcontract)
// update all bid-tick dependent statistics for this contract
{
    int row = this.UID2Row(uidcontract);
    if (row >= 0)
    {
        // subsequent bid ticks

        int sbids = Double2Int(TL().get_GET_MARKET_DATA(uidcontract, 79, 0, 1), 0);
        SourceGrid.Cells.Cell xcell = (SourceGrid.Cells.Cell)_MDData[row, (int)ColIdx.enSEQ_BID];
        if (xcell != null)
        {
            xcell.View = G1.GetIntView(sbids);

Running with TCL

# we have an event...
if {$uidevent > 0} {
    set eventcategory [tws GET_EVENT_VAL $uidevent 1]
    # event market data tick
    if {$eventcategory == "1"} {
        # get context
        set uid [tws GET_EVENT_VAL $uidevent 4]
        # price tick
        if {$uid == "1"} {