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echo: delphi
to: LOUIS RIZZUTO
from: ERIC SCHREIBER
date: 1997-01-18 17:50:00
subject: Help and conversion prob.

-=> Louis Rizzuto wrote to Eric Schreiber <=- 
LR> At any rate I would be most interested in hearing about your
LR> experience in using Delphi 1.0 as it may apply to converting a Delphi
LR> 2.0 Database apps (backwards) to a Delphi 1.0 Database apps.
LR> I take from what you said above that going backwards presents
LR> considerable problems.  Am I correct?  Thanks.
Honestly I can't help you much, as I've never ported a 2.0 app to 1.0. 
Further, I've not yet done any database work in 2.0 (though I've done a fair 
amount in 1.0).
In general though (I'm speculating here, so don't take this as gospel) I 
would think it could be done with a minimum of problem, if you're very 
careful.
First, if at all possible, I'd recommend you write it in 1.0 and port forward 
to 2.0. If that's simply out of the question, which it may be, the way I'd 
approach this is to get familiar with writing database apps in Delphi 1. 
Spend a weekend just screwing around with it so you *know* how it works. 
Then, in your Delphi 2 program don't do anything that you can't do in Delphi 
1. Don't use any Win95 specific components (threads, sliders, etc) or write 
any 32-bit code.
Though this should minimize your trouble, I'd still bet you're going to have 
a headache when it comes time to port backwards.
Sorry I can't be more help.
EEAS
eric@kobayashi.com          http://www.kobayashi.com/maru/
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