Called for its side effect of placing or cancelling an order on the TWS. This also
returns the orderId used for placeOrder. An additional side-effect is that
a variable .Last.orderId will be created or updated in the GlobalEnv as well.
Arguments
twsconn
A twsConnection object.
Contract
A twsContract object.
Order
A twsOrder object.
orderId
A valid order id.
Author
Jeffrey A. Ryan
Details
As described by the official Interactive Brokers (tm) documentation. Caveat Emptor!!