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The LA Fox Developer
A Newsletter for
FoxPro
Application Developers in Southern California
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July 1995
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John Miller
Our sequence of Devcon speakers continued this month as John Miller talked about migrating a 2.6 application to Visual FoxPro. His opening message was that migration and conversion are not easy processes when the paradigm shifts as much as it has in VFP, but there are some valid reasons for wanting to do so. These include improving data integrity using the database container capability, moving the application to a client/server environment, extending the application with OLE automation, changing attributes at run-time, or taking advantage of improved screen objects such as grids and combo boxes.
He described three different approaches
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an incremental method that lets you distribute the 2.6 app as a 3.0 app
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a full functional and visual conversion using the built-in conversion tools
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and a full rewrite using 3.0 techniques throughout. The first has the advantage of being doable in a few days time frame
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the second has the advantage of some Microsoft tools to help you, but the tradeoff is added complexity and the corresponding risk of ending up with a huge kludge because of the mixture of 2.6 and 3.0 constructs. The preferred method is rewrite, or more appropriately redesign, to take advantage of VFP strengths. This obviously takes much longer and has to be preceded by a learning curve, but for a significant application the results may warrant the cost. He pointed out that there really isn’t any definitive performance information yet
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no reason to expect a great leap forward, but on the other hand no reason to be concerned about a major slowdown.
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LA Fox
Concludes Its “Mini-DevCon”
Series
La Fox will be concluding the mini-DevCon series
begun four months ago with Ken Levy, Tom Rettig,
George Goley, and John Miller, with a presentation by
Voysys. The next four sessions will be as follows:
July 17, 1995, 7:30 PM
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Voysys. Mike Seto, from Voysys, will demonstrating his company’s wares. However, this is a sales pitch. One of the more popular exhibitors at DevCon, this company’s products provide functions to answer the phone, gather touch tone digits as menu options, the ability to “speak” numeric and date data to users who call in, and to accept numeric input for table updates. It’s an interactive voice response (IVR) toolkit and it’s done in FoxPro. We’ll probably get a peek at the code behind this technology, so don’t miss this one.
These past meetings have provided a rare opportunity to see these people when they’re not surrounded by hundreds of people clamoring for their expertise. It’s like comparing a sold-out stadium concert with the intimacy of a small night club.
These people have joined a list of speakers who have
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In this issue
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More GENSCRNX
VFP Releases to Production
Timeout With Pablo
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Page 4
Page 5
Page 7
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The July meeting of LA Fox will be held on July 17,
1995, at 7:30 PM at our regular meeting place (the
Torrance Airport, 3301 Airport Drive, in Torrance).
For details on how to get there, see the map on the
back page.
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