chrisoldwood / ddecmd Goto Github PK

When using the advise command to continuously listen for updates it does not notice when the server's end of the conversation is closed and consequently it continues listening forever.

e.g. Start one DDECmd as a server:

> DDECmd.exe listen -s test -t test

Start a second one to set-up an advise loop on an item:

> DDECmd.exe advise -s test -t test -i anything

Then kill the server and the listener will remain running until you hit Ctrl+C.

The --format switch was added to the execute verb for the sake of completeness. The default format was also set as CF_TEXT to be consistent with the other verbs.

However it was later discovered (http://chrisoldwood.blogspot.co.uk/2013/11/dde-xtypexecute-command-corruption.html) that when sending a CF_TEXT command string from a Unicode client to an ANSI server results in the command string being corrupted.

Due to the poor choice of a default (CF_TEXT) this bug will be likely to occur as DDECmd is always build for Unicode but various tools, such TCL, are built for ANSI. Given that the uFormat argument has no effect for an XTYP_EXECUTE request the switch should just be removed.

When using the listen verb it automatically sends an updated value for every advise loop at a fixed rate. The update rate could be configurable so that it's possible to flood the client with DDE updates.

The listen command only allows the server and topic name to be configured, any request or advise on an item replies with a hard-coded value. It would be useful to allow the value and format to be configured too.

One choice might be a simple value, repeated for every request, whilst using a simple number generator with a delay might be more useful for testing advises.

Current version can support only one topic,
Would it be possible to add support for multiple topics ?

ERROR: The command line switch '-t' can only be specified once

Hello Chris,
I hope you are well.
I came across your free MS Windows - DDE tools and was very impressed by the variety of the options they support.
I am not a developer, like you :) and reaching out for guidance or help, accounting your expertise.

Considering the integration DDE / RTD options for capturing data,
a) supported by the legacy desktop application and b) controlled by the vendor,
I am searching for the "DDE / RTD to Database (SQL Server)" bridge.

with added options,
-- input-config //per your manual example, listing all data requests in the file
--server REUTER --topic IDN_RWS --item "GBP=,BID ASK"
--output-config // listing file or the database destination parameters

Was hoping you might have such a tool (feature) planned or may recommend open source references.

Please forgive me for disturbing you,
I am not trying to take advantage of your time.

Kind Regards,
GK

To test data feeds, such as financial prices, it would be useful to create canned data feeds by recording data from a set of advise loops and then be able to play them back by becoming a mock server.