Taste ö:

KeyPress event, serial 36, synthetic NO, window 0x3800001,
    root 0x15a, subw 0x0, time 3746604, (420,-134), root:(1283,282),
    state 0x10, keycode 47 (keysym 0xf6, odiaeresis), same_screen YES,
    XLookupString gives 2 bytes: (c3 b6) "ö"
    XmbLookupString gives 2 bytes: (c3 b6) "ö"
    XFilterEvent returns: False

KeyRelease event, serial 36, synthetic NO, window 0x3800001,
    root 0x15a, subw 0x0, time 3746709, (420,-134), root:(1283,282),
    state 0x10, keycode 47 (keysym 0xf6, odiaeresis), same_screen YES,
    XLookupString gives 2 bytes: (c3 b6) "ö"
    XFilterEvent returns: False


taste ae:

FocusOut event, serial 36, synthetic NO, window 0x3800001,
    mode NotifyGrab, detail NotifyAncestor

FocusIn event, serial 36, synthetic NO, window 0x3800001,
    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