* Returns the number of joysticks that are attached to the computer and/or * registered with the \c QJoysticks system. * * \note This count also in

* Removes all the registered joysticks and emits appropriate signals. */

QMouseEvent::globalPos() is deprecated in Qt6; use globalPosition().toPoint() instead.

* Registers the given \a device to the \c QJoysticks system */

* Returns a pointer to the device at the given \a index. */

Helper: Calculate circular distance from joystick center, capped at 1.0. * x and y are in the -1~1 range. Returns a value in [0.0, 1.0]. */