Re: Client Access environments

Peter,

     I'm glad to see others on this list working with VB and DataQs. I have
numerous project using the techniques you are currently coding. But I
wonder, did you look around for ActiveX objects to fulfill your needs or
are you like the rest of us and have to code this stuff yourself before you
can trust it? I spent a year and a half coding with the CA/400 API and I
didn't use them all either. I did though, devote my entire efforts to
creating an ActiveX set of objects to reuse over and over again. This has
turned the CA/400 interface using VB into a truly RAD environment to work
in. Less coding and debugging has been a HUGE payoff.

This should help you get the cwbCO GetDefaultSysName function integrated
into your VB project:

Const CWB_OK = 0
Declare Function cwbSV_CreateErrHandle Lib "cwbSV" ( _
                      ErrorHandle As Long) As Long
Declare Function cwbCO_GetDefaultSysName Lib "cwbCO" ( _
                              DefaultSystemName As Byte, _
                              ByVal BufferSize As Long, _
                              Needed As Long, _
                              ByVal ErrorHandle As Long) As Long


Private Function DefaultSystemName() As String
Dim bSystemName() As Byte
Dim lBufferSize As Long
Dim lNeeded As Long
Dim sTmp As String
Dim lErrorHandle As Long
Dim lRC As Long
  Call cwbSV_CreateErrHandle(lErrorHandle)
  lBufferSize = 256
  Do
    ReDim bSystemName(lBufferSize) As Byte
    lRC = cwbCO_GetDefaultSysName(bSystemName(LBound(bSystemName)),
lBufferSize, lNeeded, lErrorHandle)
    If lRC = CWB_OK Then
      If lBufferSize = lNeeded Then Exit Do
      lBufferSize = lNeeded
      End If
    Loop While lRC = CWB_OK
  Call cwbSV_DeleteErrHandle(lErrorHandle)
  If lRC = CWB_OK Then
    sTmp = ""
    For lNeeded = LBound(bSystemName) To UBound(bSystemName)
      If bSystemName(lNeeded) = 0 Then Exit For
      sTmp = sTmp & Chr$(bSystemName(lNeeded))
      Next lNeeded
    DefaultSystemName = sTmp
   Else
    DefaultSystemName = ""
    End If
  End Function

Ken Slaugh  (707) 795-1512 x118
Chouinard & Myhre, Inc.
AS/400 Professional Administrator/MSE
Client Access Specialist
http://www.cm-inc.com/


                                                                                
                
                    "Peter Dow"                                                 
                
                    <pcdow@yahoo.com>          To:     
<MIDRANGE-L@midrange.com>                
                    Sent by:                   cc:                              
                
                    owner-midrange-l@mi        Subject:     Client Access 
environments          
                    drange.com                                                  
                
                                                                                
                
                                                                                
                
                    09/07/00 06:56 PM                                           
                
                    Please respond to                                           
                
                    MIDRANGE-L                                                  
                
                                                                                
                
                                                                                
                



Hi All,

I finally got a VB 6.0 program to successfully read and write to a data
queue on an AS/400. In order to do this, I switched from Client Access to
CA
Express.

When I had CA installed, I had a Primary Environment, and a DSS
environment.
When I installed CA Express, these are now managed by Ops Nav. I see the
DSS
environment, but no Primary Environment, just "My AS/400 Connections".

The VB program, through no fault of my own, uses the DSS environment.  When
I cloned the program and try to make it into CGI, it uses the non-existent
"Primary Environment", which btw had no systems in it.

Questions:

1) is there any way to have the VB program select the CA environment?

2) if the answer to 1) is no, how do I create the "Primary Environment"
it's
using? I've already tried creating one and adding a system to it, but it
doesn't show up in the SystemNames object.  I also tried renaming the "DSS"
environment to "Primary Environment" after which it promptly lost 6 of the
9
systems I had defined.

TIA,

Peter Dow
Dow Software Services, Inc.
909 425-0194 voice
909 425-0196 fax



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