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Asked: 2026-05-25T21:29:27+00:00

Problem I am working on modifications to one of my applications that communicates with

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Problem
I am working on modifications to one of my applications that communicates with a telescope.

One of the most annoying problems due to nothing else but reckless poor design, is the GOTO controller and its keypad.

If anyone of you remember the Sinclair Spectrum you know what I mean. As well as the rubber keys, the crucial keys for guiding and slewing the telescope are awkward to locate when your eye is trying to adapt to the view.

All it takes is the wrong key and you spend another 30 minutes or so re-aligning the telescope.

Workaround
My solution is a game controller such as a wingman, it fits neatly into your hands and is easy to locate the buttons. Also there is no risk of reseting the mount.

Question
My question is this, how does Delphi interact with game controllers because tthere is no mention in the documentation? Otherwise how do I access a gameport when it is connected through a USB dongle?

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1 Answer

  1. Editorial Team

    Working with the game controller is part of the Windows API. JEDI’s JVCL has a Human Interface Device (HID) constroller (TJvHIDDeviceController) component that does what you want.

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