Page down press:
----------------

FocusOut event, serial 36, synthetic NO, window 0x2000001,
    mode NotifyGrab, detail NotifyAncestor

Page down release:
------------------

FocusIn event, serial 36, synthetic NO, window 0x2000001,
    mode NotifyUngrab, detail NotifyAncestor

KeymapNotify event, serial 36, synthetic NO, window 0x0,
    keys:  2   0   0   0   0   0   0   0   0   0   0   0   0   0   0   0   
           0   0   0   0   0   0   0   0   0   0   0   0   0   0   0   0   

Up arrow press:
---------------

FocusOut event, serial 36, synthetic NO, window 0x2000001,
    mode NotifyGrab, detail NotifyAncestor

Up arrow release:
-----------------

FocusIn event, serial 36, synthetic NO, window 0x2000001,
    mode NotifyUngrab, detail NotifyAncestor

KeymapNotify event, serial 36, synthetic NO, window 0x0,
    keys:  2   0   0   0   0   0   0   0   0   0   0   0   0   0   0   0   
           0   0   0   0   0   0   0   0   0   0   0   0   0   0   0   0