-----Original Message-----
From: profox-bounces at leafe D.OT com [mailto:profox-bounces@leafe.com] On
Behalf Of Dave Bernard
Sent: Thursday, March 31, 2005 4:52 PM
To: profox at leafe D.OT com
Subject: RE: VFP developers and handheld apps
I agree with Alan that building the app to be delivered via a web page
is an excellent way to get good results fast. While we rolled our own
VFP-based COM framework to create the web pages, WW is certainly and
excellent way to go.
However, we found a very big caveat that may not be a problem for you
but is a major barrier for us. We had an additional requirement to (1)
support an active RFID reader plugged into an off-the-shelf handheld and
(2) interface with a .NET library to control the reader. Unfortunately,
there is virtually no COM Interop capability with Windows CE for talking
from, say, JavaScript to a .NET COM object! I have confirmed this,
disappointedly, with Microsoft engineers. I'm working on a multi-wrapper
work-around for this problem using eVC, but I'm not there yet, although
it looks promising.
If someone else has found a solution to this, other than rewriting our
whole framework in .NET (which is not an option), then I'm all ears.
Dave
Just our of curiosity, what RFID tags are you using and which frequency
range?
Thanks
Alan
©2005 Alan Wyne |
