added video transcode and ibpy examples

--HG--
branch : sandbox

src/ibpy/ib_api_demo.py

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+#! /usr/bin/env python
+# -*- coding: cp1252 -*-
+# Copyright (c) 2014 Andreas
+# See LICENSE for details.
+
+""" ib_api_demo """
+
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+from __future__ import unicode_literals
+
+from ib.ext.Contract import Contract
+from ib.ext.Order import Order
+from ib.opt import Connection
+
+
+def error_handler(msg):
+    """Handles the capturing of error messages"""
+    print("Server Error: %s" % msg)
+
+
+def reply_handler(msg):
+    """Handles of server replies"""
+    print("Server Response: %s, %s" % (msg.typeName, msg))
+
+
+def create_contract(symbol, sec_type, exch, prim_exch, curr):
+    """Create a Contract object defining what will
+    be purchased, at which exchange and in which currency.
+
+    symbol - The ticker symbol for the contract
+    sec_type - The security type for the contract ('STK' is 'stock')
+    exch - The exchange to carry out the contract on
+    prim_exch - The primary exchange to carry out the contract on
+    curr - The currency in which to purchase the contract"""
+    contract = Contract()
+    contract.m_symbol = symbol
+    contract.m_secType = sec_type
+    contract.m_exchange = exch
+    contract.m_primaryExch = prim_exch
+    contract.m_currency = curr
+    return contract
+
+
+def create_order(order_type, quantity, action):
+    """Create an Order object (Market/Limit) to go long/short.
+
+    order_type - 'MKT', 'LMT' for Market or Limit orders
+    quantity - Integral number of assets to order
+    action - 'BUY' or 'SELL'"""
+    order = Order()
+    order.m_orderType = order_type
+    order.m_totalQuantity = quantity
+    order.m_action = action
+    return order
+
+
+if __name__ == "__main__":
+    # Connect to the Trader Workstation (TWS) running on the
+    # usual port of 7496, with a clientId of 100
+    # (The clientId is chosen by us and we will need 
+    # separate IDs for both the execution connection and
+    # market data connection)
+    tws_conn = Connection.create(port=4001, clientId=100)
+    tws_conn.connect()
+
+    # Assign the error handling function defined above
+    # to the TWS connection
+    tws_conn.register(error_handler, 'Error')
+
+    # Assign all of the server reply messages to the
+    # reply_handler function defined above
+    tws_conn.registerAll(reply_handler)
+
+    # Create an order ID which is 'global' for this session. This
+    # will need incrementing once new orders are submitted.
+    order_id = 1
+
+    # Create a contract in GOOG stock via SMART order routing
+    goog_contract = create_contract('GOOG', 'STK', 'SMART', 'SMART', 'USD')
+
+    # Go long 100 shares of Google
+    goog_order = create_order('MKT', 100, 'BUY')
+
+    # Use the connection to the send the order to IB
+    tws_conn.placeOrder(order_id, goog_contract, goog_order)
+
+    # Disconnect from TWS
+    tws_conn.disconnect()