From: gregarican <greg.kujawa@...>
Date: 2005-10-09T21:16:51+09:00
Subject: Re: Ruby/DL Question

Takaaki Tateishi wrote:

> I think the above line should be csta['acsOpenStream', 'IPSISSSSSISIIIIS'].
> As you can see, I put 'I' before the 'PSISS....' since the method is supposed to
> return an integer value.


I made the change to include the integer return value, and removed the
P entry since the pointer was no longer in the picture. In addition I
checked the parameter data types to ensure that they matched. There
were a couple of entries that I originally had as strings which were
actually enum types in the C header file. So I went in and found the
corresponding integer values they represent. Now my code looks like:
----------------------------------------
=begin
TSAPI
acsOpenStream (acsHandle	/* RETURN an integer value? */
	         invokeIDType,	/* INPUT  an integer ENUM value?*/
	         invokeID,	/* INPUT an integer value? */
	         streamType,	/* INPUT an integer ENUM value? */
	         serverID,	/* INPUT a null terminated string value? */
	         loginID,	/* INPUT a null terminated string value? */
	         passwd,	/* INPUT a null terminated string value? */
	         applicationName,/* INPUT a null terminated string value? */
	         acsLevelReq,	/* INPUT an integer ENUM value?*/
	         apiVer, 	/* INPUT a string value? */
	         sendQSize, 	/* INPUT an integer value? */
	         sendExtraBufs,	/* INPUT an integer value? */
	         recvQSize,	/* INPUT an integer value? */
	         recvExtraBufs, 	/* INPUT an integer value? */
	         privateData	/* INPUT a null terminated string value? */);
=end
require 'dl'
csta=DL.dlopen('csta32.dll')
openStream=csta['acsOpenStream', 'IIIISSSSISIIIIS']
invokeIdType=2
invokeId=0
streamType=1
serverId="AVAYA#MERLIN#CSTA#MERLIN-CTI\000"
loginId="username\000"
passwd="password\000"
applicationName="CTI Test\000"
acsLevelReq=1
apiVer="TS2"
sendQSize=0
sendExtraBufs=0
recvQSize=0
recvExtraBufs=0
privateData="VERSION\000"

resultCode=openStream.call(invokeIdType,invokeId,streamType,serverId,loginId,passwd,applicationName,acsLevelReq,apiVer,sendQSize,sendExtraBufs,recvQSize,recvExtraBufs,privateData)
p resultCode[0]
----------------------------

The resultCode[0] entry returned -2, which according to the API means a
bad parameter was passed to the call. I double checked the expected
parameter data types and everything appears to be correct. the code
comments indicate what I _think_ the API expects to be passed to the
acsOpenStream method. This was going strictly against the TSAPI docs
that are public domain.
http://www.cs.cornell.edu/courses/cs519/1998fa/project/Doc/PBX/tsapi.pdf
is such an example.

Sigh....this is getting frustrating...