Bill Walton wrote:
My question was more general in nature than Shaun's. Does all communication
in VistA get "funnelled through" a single package?
Yes and no. (see below).
Or do the various
components (e.g., registration, pharmacy, etc.) all communicate with
terminals directly?
They use a mix of interfaces. Originally, they all used terminals
exclusively. The interactions could be hardcoded read and write
scrolling dialogs, FIle Manager driven scrolling dialogs, formatted
screens, hybrid scrolling and formatting (List Manager) and then GUIs.
Some applications also use HL7 interfaces and RPCs, primarily for
communicating with non-M entities.
Thanks,
Bill
----- Original Message -----
From: "steven mcphelan" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, September 28, 2004 7:44 AM
Subject: Re: [Hardhats-members] Vista without CPRS
Nothing has to be modified at all. The question was could VistA be used
without using CPRS, that is, using the List Manager version of CPRS.
There
is no GUI client nor callback in the List Manager version. It is just a
ordinary terminal session.
Now if the question is how to make CPRS to use a specific port. Then Roy
gave the direction for that change. The M code does not need to be
modified
whatsoever. However, the Delphi code that sets up the client to be a
listener must be changed to send a fixed port number.
----- Original Message -----
From: "Bill Walton" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, September 28, 2004 6:43 AM
Subject: Re: [Hardhats-members] Vista without CPRS
A very lucid explanation, Roy. Thank you.
What package in VistA contains the host end of this? I'm interested in
the
possibility that VistA could be wrapped in SOAP as a way of addressing
the
lack of M-proficient system administrators in the IT population at large
(context = VistA viability for community-based physicians). Has anyone
here
ever been down this alley?
Thanks,
Bill
----- Original Message -----
From: "Roy" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, September 27, 2004 9:41 PM
Subject: Re: [Hardhats-members] Vista without CPRS
The code is acutally in the RPB Broker so you would have to modify it
to
use
a specific port rather than a "random" port.
The code is in wsockc.pas, the port for the callback is actually set
by
the
client. Look for LocalPort in the code and you will see how the RPC
Client
gets this port, it sends the port to the host (VistA) along with the
ip
address so the host (VistA) knows where to do the call back.
The process is rather simple, an initial connection is made and the
client
sends the necessary info to the host, the host forks off a process to
perform the callback to the client, this forked process is the one
used
for
all subsequent IP communiation to the client. I hope this helps.
----- Original Message -----
From: "Nancy Anthracite" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, September 26, 2004 6:59 AM
Subject: RE: [Hardhats-members] Vista without CPRS
Is that with the RPC broker components in the Delphi code, or, as I
would
guess, in the M code? How would I find it?
Can you think of a string I could search M code for to hone in on
t? --
i.e., you got to do better than that, Roy, for us newbies!!! ;-)
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of
Roy
Sent: Sunday, September 26, 2004 12:34 AM
To: [EMAIL PROTECTED]
Subject: Re: [Hardhats-members] Vista without CPRS
It is in the winsock code.
----- Original Message -----
From: "Kevin Toppenberg" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Saturday, September 25, 2004 6:32 PM
Subject: Re: [Hardhats-members] Vista without CPRS
Shaun,
The server side is written in M, and the windows
client is written in Delphi pascal.
I wouldn't advise you to try to pick through all that
M code--it's pretty ugly if you ask me. I was
thinking that someone else on the list might know
right how to do it.
Kevin
--- CS Wagner <[EMAIL PROTECTED]> wrote:
I worked on that for the past couple weeks and I
haven't even found a
starting point. I wrongly assumed that CPRS was
written in C or C++.
It appears to be in M. Since I can barely recognize
M at this point, I
can't work on the code.
-Shaun
Kevin Toppenberg wrote:
How difficult would it be to modify the source code
so
that a specific port is used for the call back,
rather
than a random port. I would think that finding the
code would the difficult part. But after found, I
would think that specifying a given port would be
straightforward.
Kevin
--- CS Wagner <[EMAIL PROTECTED]> wrote:
It is becoming clear that we cannot use CPRS with
our network security.
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