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axis: Do not crash on non-tkinter event in key press/release tracking #4001

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axis: Do not crash on non-tkinter event in key press/release tracking #4001

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4 changes: 2 additions & 2 deletions src/emc/usr_intf/axis/scripts/axis.py
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Original file line number Diff line number Diff line change
Expand Up @@ -123,15 +123,15 @@ def putpref(self, option, value, type=bool):
# Handle repeated key press events
pressed_keys_list = []
def key_pressed(ev):
if None == ev:
if None == ev or not isinstance(ev, Tkinter.Event):
return False
if ev.keysym in pressed_keys_list:
return True
pressed_keys_list.append(ev.keysym)
return False

def key_released(ev):
if None == ev:
if None == ev or not isinstance(ev, Tkinter.Event):
return
# KeyRelease without KeyPress may happen when a modifier is active when
# the key is pressed without a KeyPress handler. No KeyPress event is
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