TInput-Component

You can capture all events with unusual hardware, especially if the key codes are above 255.

This component only works with Lazarus and Linux (not Windows), but does not provide general access to other programs running under X.

My goal was to use the Infinity VEC pedal with Lazarus/Linux.
The pedal is recognized well by Linux as a USB device, but the VEC pedal generates the codes 256-258, which cannot be processed by the X server (without further measures such as mapping).
The component is able to read all events listed in /dev/input (as examples: VEC pedal, simple game controller and jog-dial Contour Shuttle Pro V2).
Mouse and keyboard events could also be captured, but that usually doesn't make sense since they are almost fully supported by XServer and Lazarus.