Hello,
I am trying to communicate to a Reuters feed using Python, using a particular
set of
libraries called the Adfin Real Time library. I have VB code, and am trying to
port
it to python, and admit I really do not understand COM objects and being a
Linux guy
mainly, I don't use VB at all. I've had some marginal success, but am coming
up
empty when it comes to setting up callbacks.
For example, this works:
import win32com.client
import time
symb='GOOG.O'
mylist=win32com.client.Dispatch('AdfinXRTLib.AdxRtList')
mylist.Source="IDN_RDF"
mylist.RegisterItems(symb,"ASK")
mylist.StartUpdates(4) # Mode Image
while mylist.ItemStatus(symb):
pass
for i in range(100):
m=mylist.Value(symb,"ASK")
print m
time.sleep(2)
but to get it to automatically updated quotes, in VB they do something like
#================
Public Class Form1
# Dimension a Public Real Time list object that is capable of handling events
# note from me: not sure what this line does really
Dim WithEvents AdxList As New AdfinXRTLib.AdxRTList
Public Sub AdxList_OnUpdate( <some args deleted>) Handles AdxList.OnUpdate
do stuff with the updated data
End Sub
Private Sub Button1_Click(<some args deleted>)
do stuff with button click
End Sub
End Class
#================
It seems as if the important part is the "Handles AdxList.OnUpdate", which I
assume
is basically saying "call me when AdxList.OnUpdate is called". I have no idea
how to
get this to point to a python function, so I can make the AdxList.OnUpdate call
python code.
Is there a tutorial somewhere about this stuff, or is there a proper place to
ask
such questions?
thanks,
Brian Blais
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http://web.bryant.edu/~bblais
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