inter-app communication to LiveCode?

[Peter Bogdanoff]

Thank you Scott and Trevor! Trevor, I think what you wrote certainly puts me in the right direction.

Peter

> On Sep 19, 2019, at 9:12 PM, Trevor DeVore via use-livecode <use-livecode at lists.runrev.com> wrote:
> 
> On Thu, Sep 19, 2019 at 5:25 PM Peter Bogdanoff via use-livecode <
> use-livecode at lists.runrev.com> wrote:
> 
>> A user asked about “linking” to my desktop LC app from a PDF. Is there
>> anything in the PDF spec that does this? His idea was that it the link
>> would do more than just opening up my app, but contain data that indicates
>> a specified “page” in my app.
>> 
>> My application is Mac/Windows.
>> 
> 
> You can define a url protocol (e.g. myapp://) which can be configured on
> Mac or Windows to launch your application. This works with links in a
> browser so that a web page can contain a link that launchers your
> application. I don't know if it will work from a PDF file, though. It may
> depend on the PDF viewer or other variables. It is probably worth trying as
> you can embed the "page" number in the url.
> 
> On Windows you need to update the Windows Registry. Here is a link to some
> code in a library that ships with Levure that will set the appropriate
> values in the registry:
> 
> https://github.com/trevordevore/levure/blob/develop/framework/helpers/file_system/file_system.livecodescript#L193
> 
> You can run this code when your application first launches.
> 
> On Mac/iOS you need to add some keys to your Info.plist file. The README
> for the library has an example:
> 
> https://github.com/trevordevore/levure/tree/develop/framework/helpers/file_system#url-protocols
> 
> Once you've set the registry/Info.plist files up (you will need to launch
> the app at least once on macOS so it picks up the settings in the plist
> file) your app will be launched when the URL protocol is triggered. On
> macOS you will handle an appleEvent. You can look at the code in the
> library for hints:
> 
> https://github.com/trevordevore/levure/blob/develop/framework/helpers/file_system/file_system.livecodescript#L83
> 
> For Windows you can read the `commandArguments` when the app launches or,
> if the application is already running, handle the `relaunch` command and
> use the parameters passed to it.
> 
> Hopefully that is enough to get you started.
> 
> -- 
> Trevor DeVore
> ScreenSteps
> www.screensteps.com
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