public void Update(KeyboardState currentKeyboardState)
{
if (_requiresUpdate)
{
_lastKeyList = _newKeyList;
_newKeyList = currentKeyboardState.GetPressedKeys();
StripUnmanagedKeys(ref _newKeyList);
if (!TreatModifiersAsKeys)
{
LastModifiers = NewModifiers;
NewModifiers = _newKeyList.GetModifiers();
StripModifiers(ref _newKeyList);
}
NewKeyDelta = _newKeyList.Except(_lastKeyList).ToList();
if (NewKeyDelta.Any())
{
FocusKey = NewKeyDelta.First();
}
else if (_lastKeyList.Except(_newKeyList).Any())
{
FocusKey = Keys.None;
}
}
}
public void Start(KeyboardState currentKeyboardState)
{
_requiresUpdate = true;
_lastKeyList = currentKeyboardState.GetPressedKeys();
StripUnmanagedKeys(ref _lastKeyList);
if (!TreatModifiersAsKeys)
{
LastModifiers = _lastKeyList.GetModifiers();
StripModifiers(ref _lastKeyList);
}
NewKeyDelta.Clear();
FocusKey = Keys.None;
}
