Polls for and processes events the specified joystick

Returns JNIEnv and sets *attached=1 if we attached (caller must detach).

Called in a poll-style manner on Windows. For Apple we call this once on init to setup a tail-end recursive callback loop.

Translates an X event modifier state mask

Updates the cursor clip rect

Sets the X error handler callback

Initialize joystick interface

Convert XKB KeySym to Unicode

Clears the X error handler callback

Close all opened joystick handles

See: https://randygaul.github.io/math/collision-detection/2014/07/01/Distance-Point-to-Line-Segment.html

Centers the cursor over the window client area

Frees all resources associated with the specified joystick