The signature is inferred from PPSA12361: a 16-bit keycode, a second
argument the title passes as 0, the type from
sceConvertKeycodeGetImeKeyboardType and a UTF-16 output. The keycode is a
USB HID keyboard usage and the unshifted US character is returned; a
keycode without a character returns 0. A second argument or keyboard type
other than 0 throws.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
