I don't see how.

I mean Lr does not allow low-level access to internet communications, and otherwise what you get is:

LrFtp, and

LrHttp.

If you cant do it with those, then you cant do it, or at least not directly...

One thing you can do is talk to an external app. So what you could do is write the protocol handler as an external app, and then to send information from a plugin via the custom internet protocol, write a file or pass parameters to the external app. To receive, you could read a file written by the external app.

Thats about all I can think of at the moment.

Well maybe one other idea: use an http wrapper to access a web-app to tunnel, instead of a reglar app.

Rob

It's not documented in SDK, but I've tried it before.

In Info.lua:

URLHandler = "URLHandler.lua",

In URLHandler.lua (or whatever you want), just:

local handler={}

function handler.URLHandler(url)

-- handle url here

end

return handler

BTW I also tried this for external app communication, but for that specific purpose it was not suitable, because Lightroom takes focus when URL is clicked from browser.

This seems to work fine on my Win XP system running Firefox as my system default browser.  If I use IE 8, instead, I get an "Internet Explorer cannot display the webpage" diagnostic page when it gets handed my "lightroom://...." callback URL.  Does this mechanism work with IE?  Is it because IE wasn't my default browser when Lightroom was installed?

-Don

Seems to work just fine if you just permanently dismiss the dialog box, e.g. IE.

I've used this technique in my new cookmarks plugin:

http://www.robcole.com/Rob/ProductsAndServices/CookmarksLrPlugin

Don,

Thanks for the link.

Yeah - I have had no problems in IE when clicking on links via internet supplied web pages, once Lightroom has been approved as the URL handling agent. Never tried a redirect.

I mean, lightroom:// links are neither local nor remote per se - or should I say they are always "local"...

Rob