{{tag>category:"OpenInsight 32-Bit" author:"Steve Epstein" author:"[url=http://www.sprezzatura.com]The Sprezzatura Group[/url]" author:"Sean FitzSimons" author:"dsig@sigafoos.org" author:"Gerald Lovel" author:"Bob Carten"}}

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==== Open Engine (OpenInsight 32-Bit) ====
=== At 24 JUL 2006 03:13:41AM Steve Epstein wrote: ===
 
 
<QUOTE>
I am not a "Windows" programmer, so my questions are probably elementary, however I need some help from those more knowledgable.



We have a single user application.  We would like to call OI functions, or start OI windows, from VB or C++.  While I have the Open Engine Reference 1.5, and I have read the Open Engine section of the on-line help, it is still a mystery to me how to get VB and OI to run together.



Does anyone have a simple example (like "Hello World") of how to do the following on the same machine using either VB or C++:



1.  Start the OI Engine;

2.  Call an existing OI function and use the information passed back;

3.  Start an OI window and send an event to it?



Thanks in advance.  Any help would be greatly appreciated.
</QUOTE>
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=== At 24 JUL 2006 05:45AM [url=http://www.sprezzatura.com]The Sprezzatura Group[/url] wrote:  ===

<QUOTE>Steve,



Check out a href=http://www.revelation.com/o4wtrs/oecgi3.exe/O4W_DOMINO_HANDOFF?DESTN=O4W_RUN_FORM&INQID=WORKS_READ&KEY=66C867B166B8791685256C2500612A91&KEY1=66C867B166B8791685256C2500612A91]this[/url] thread for an example of calling an OI function from VB.  This should take care of questions 1 and 2.  You should also look at the OpenEngine chapter of the on-line help for more explanation on how OE is loaded from other programs.



For question 3 you could execute OINSIGHT.EXE and then send it a custom message via the Windows SendMessage() function to one of your OI forms.  You could then use the form's WINMSG event to trap the message and process accordingly....



[url=http://www.sprezzatura.com]The Sprezzatura Group

[i]World leaders in all things RevSoft[/i]

[img]http://www.sprezzatura.com/zz.gif[/img]

</QUOTE>

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=== At 24 JUL 2006 06:33PM Steve Epstein wrote:  ===

<QUOTE>Dear Sprezz,



Thanks for your help.  I looked at the thread and the on-line info, but it is still a mystery to me how the VB program knows about the Rev objects.



Must one make the VB program aware of some DLL, such as REVCAPI?  In the code fragments I saw no statements to load the objects.



How does one do this?

</QUOTE>

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=== At 25 JUL 2006 05:01AM [url=http://www.sprezzatura.com]The Sprezzatura Group[/url] wrote:  ===

<QUOTE>Steve,



Can't say I'm a VB programmer but if you register XRev.DLL on your system you should be able to find a Revelation object - I know VB has a dialog box for making ActiveX object available to the IDE - but you'll have to check the VB docs ...



[url=http://www.sprezzatura.com]The Sprezzatura Group[/url]

[i]World leaders in all things RevSoft[/i]

[img]http://www.sprezzatura.com/zz.gif[/img]



</QUOTE>

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=== At 25 JUL 2006 09:08AM Sean FitzSimons wrote:  ===

<QUOTE>Steve,



Have you looked at:



Online Help:



Programmer's Reference Manual

Chapter 10: Programming Techniques

Communicating Between Visual Basic and OpenInsight



Sean

</QUOTE>

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=== At 25 JUL 2006 09:20AM [url=http://www.sprezzatura.com]The Sprezzatura Group[/url] wrote:  ===

<QUOTE>Nice one Sean, knew I'd seen it somewhere! :)



[url=http://www.sprezzatura.com]The Sprezzatura Group[/url]

[i]World leaders in all things RevSoft[/i]

[img]http://www.sprezzatura.com/zz.gif[/img]

</QUOTE>

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=== At 26 JUL 2006 05:09AM Steve Epstein wrote:  ===

<QUOTE>Dear Sean,



I read Chapter 10 and tried to implement the example.  I failed completely.



The VB code editor indicates that the following statements are not correct, and gives some suggestions:



Public Revelation As Revelation .... suggestion: Public Revelation As RevSoftLib.Revelation

Set Revelation=New Revelation .... suggestion: Revelation=New RevSoftLib.Revelation

DoEvent is not a statement and DoEvent() is not a function.



In any case, the code does not seem to run with these changes.



Does the OEngine have to be already running?  The example does not indicate, but I tried it both ways.



Here is the complete snippet (I only tried the first part to see if an engine could be started):



Option Explicit On

Public Class Form1

    Public Revelation As RevSoftLib.Revelation

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load



    End Sub

    Private Sub Command1_Click()

        Dim Engine As RevSoftLib.IEngine

        ' Declare variables

        Dim Result As Long

        'Create the core Revelation object.

        Revelation=New Revelation

        Result=Revelation.CreateEngine(Engine, ":777", "SYSPROG", 0, 0)

        MsgBox("Result after CreateEngine= & Result)

        Engine=Nothing

        Revelation=Nothing

    End Sub



End Class



Does anyone out there know how to use VB and OI together?  We really need to get this working.



Please help us.



I can be contacted at sepstein@absconsulting.com or at +81 48-726-8543 in Tokyo.



Steve

</QUOTE>

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=== At 26 JUL 2006 07:53AM [url=http://www.sprezzatura.com]The Sprezzatura Group[/url] wrote:  ===

<QUOTE>Eric the Emu wrote an [url=http://www.sprezzatura.com/senl/volume_4_issue_1.htm#Eric%20the%20Emu%20does%20VB1%20(and%20Visual%20Basic)]SENL Article[/url] about this. 



[url=http://www.sprezzatura.com]The Sprezzatura Group[/url]

[i]World leaders in all things RevSoft[/i]

[img]http://www.sprezzatura.com/zz.gif[/img]

</QUOTE>

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=== At 26 JUL 2006 10:56PM Steve Epstein wrote:  ===

<QUOTE>Dear All,



Thanks for your help!



The problem, I discovered, was with Visual Studio 2005.  Something has changed in the syntax definition of VB.  When I used an older version of Visual Studio, everything worked exactly as documented.



Are there any VB mavens out there who know how to work with VS 2005?  Cetainly this is a big drawback (no thanks to MicroCrap), fo writing new programs to communicate with the engine.

</QUOTE>

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=== At 26 JUL 2006 10:59PM Steve Epstein wrote:  ===

<QUOTE>Dear Sprezz,



Same problems with Eric the Emu's code as with the example in Chapter 10.



See the RESOLVED posting I just made.



If Eric is out there, perhaps he knows how to change the code to work with Visual Studio 2005.

</QUOTE>

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=== At 27 JUL 2006 09:27AM dsig@sigafoos.org wrote:  ===

<QUOTE>did you contact any of the many good VB groups out there about the problem?

</QUOTE>

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=== At 27 JUL 2006 11:57AM Gerald Lovel wrote:  ===

<QUOTE>Another mindshare issue.  MicroSoft changes program interfaces to introduce incompatibilities.  This keeps the programmer focused on dealing with MicroSoft compatibility issues, so that there is no time for productive work -- like addressing the Linux port.  Incidentally, how is that going, Rev?

</QUOTE>

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=== At 27 JUL 2006 12:46PM Bob Carten wrote:  ===

<QUOTE>

Are you using OI 7.21? 

If you have more than one version of OI on the machine, did you register the 7.21 Xrev.dll? (e.g. regsvr32 \revsoft\oi721\xrev.dll)



As I recall, we reworked Xrev.dll to make it compatible with C# in .Net 2003.  Vb.Net could handle variant arrays, C# could not, or something like that.  Could be that they fixed that in 2005. broke something else.



Bob



</QUOTE>

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=== At 27 JUL 2006 08:11PM Steve Epstein wrote:  ===

<QUOTE>Yes, I am using OI7.2.1 with all the latest patches.



I am not the only one having compatibility issues with VS 2005.  My colleauges (in Sweden), who work in .net with C#, have similar issues.

</QUOTE>


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