App tethering

App tethering is a unique feature of Delphi that can be used to set up communication between different types of applications, such as mobile or desktop, running on any of the supported platforms using FireMonkey. It can also be used in the Windows-specific VCL library. The original use case for app tethering was to be able to extend existing desktop apps to mobile and easily create mobile companion apps. Instead of trying to re-implement existing desktop apps on mobile, the idea was to be able to either control a desktop app from a mobile app or to be able to easily exchange data between the two.

For example, we could have an existing desktop application written in Delphi that help doctors keep track of patients’ data and possibly control some medical instruments. There is nothing wrong with this desktop application; it has stood the test of time and is very useful. However, mobile has brought new possibilities. It would be cool to use a mobile device with a...