Hitting Fn+PrtSc gives me the following output.
VisibilityNotify event, serial 33, synthetic NO, window 0x5600001,
state VisibilityFullyObscured
VisibilityNotify event, serial 33, synthetic NO, window 0x5600001,
state VisibilityUnobscured
Expose event, serial 33, synthetic NO, window 0x5600001,
(0,0), width 178, height 10, count 3
Expose event, serial 33, synthetic NO, window 0x5600001,
(0,10), width 10, height 58, count 2
Expose event, serial 33, synthetic NO, window 0x5600001,
(68,10), width 110, height 58, count 1
Expose event, serial 33, syntheitc NO, window 0x5600001,
(0,68), width 178, height 110, count 0
