With some irony given the two threads running in the debate, I have got this working, but regrettably not in Delphi; have had to switch to VB.Net to do it. Franson make a component that allows you to create virtual com ports which you can write data to; so I create one of these, read in the real GPS location, do the math to offset it, and then write out the offset location to the virtual com port at which point my other software can then connect to it.
http://franson.com/serialtools/ It's also available as an ActiveX control, which would mean I could do it in Delphi (and use my old friend TComPort) which I'm now playing with ... Thought I'd pass on what I've found. Thanks for all the responses ... Simon Garton GIS/IT Consultant email : [EMAIL PROTECTED] mob : +64 21 227 4666 lat/long : 36º53'17" S, 174º46'50" E www : http://www.simongarton.co.nz http://www.treecapture.co.nz -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Simon Garton Sent: 24 July 2008 2:15 p.m. To: 'NZ Borland Developers Group - Delphi List' Subject: [DUG] Faking a serial port I have an interesting request ... I write a lot of GPS based apps, and am quite familiar with reading data from via a COM port from the GPS. A client needs that GPS position offset - rather than exactly where the GPS is, he needs it to read (e.g.) at right angles to the direction of travel and a certain distance away ... so he can drive past Telecom poles, and click a button, but record the position of the pole on the berm, not the truck on the road. That's fine if it's internal to my app, as I can do the math, but he has another app which is a black box and hooks into a camera system, and I have no access to this software. What I want to do is write a little app that reads the GPS COM Port, does the offset, and then "streams the offset data out to another COM Port" ... and the camera box can then read this COM Port. Is this even possible ? To write an app that streams data to a COM Port so that another application on the same computer can read it ? It's a bit of an odd one, and I don't know where to start looking ... Simon Garton GIS/IT Consultant email : [EMAIL PROTECTED] mob : +64 21 227 4666 lat/long : 36º53'17" S, 174º46'50" E www : http://www.simongarton.co.nz http://www.treecapture.co.nz _______________________________________________ NZ Borland Developers Group - Delphi mailing list Post: [email protected] Admin: http://delphi.org.nz/mailman/listinfo/delphi Unsubscribe: send an email to [EMAIL PROTECTED] with Subject: unsubscribe _______________________________________________ NZ Borland Developers Group - Delphi mailing list Post: [email protected] Admin: http://delphi.org.nz/mailman/listinfo/delphi Unsubscribe: send an email to [EMAIL PROTECTED] with Subject: unsubscribe
