New documentation: Lightroom Controller SDK Guide
At some point in the last 5 months, Adobe appears to have published "Addendum: Externally Controlling LIghtroom", an addendum to the Lightroom Classic SDK Programmers Guide: https://console.adobe.io/downloads/lr
This guide demonstrates how to use the Lightroom SDK to write a plug-in that enables external control of the application (for example, to allow a hardware device like a physical knob to control a slider in the Develop module).
The intended audience for this guide are hardware manufacturers who wish to integrate their controller device with Lightroom, which involves authoring a companion Lightroom plug-in which their device driver sends commands to. More generally, this guide is for developers who want to enable communication between a Lightroom plug-in and another application.
It's got an extended example.
Glad they cared enough to notify the community.
