[Windows] Some keys doesn't work in applications

[Mascantosh]

Keys like:

1. Page Down
2. Page Up
3. Arrow Left
4. Arrow Right
5. Arrow Up
6. Arrow Down
7. Home
8. End
   Doesn't work because these keys should be send in keybd_event with KEYEVENTF_EXTENDEDKEY flag, more in [Windows] Added support of Extended-Key Flag KEYEVENTF_EXTENDEDKEY #888.