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Problem with CurrentValue and Alt key

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  • Subject: [mg104563] Problem with CurrentValue and Alt key
  • From: Harrie Kraai <hakraai at>
  • Date: Wed, 4 Nov 2009 01:33:14 -0500 (EST)

Hi, I got the following example from the Documentation Center on 
CurrentValue, but noticed a quirk: pushing the Alt key is signaled 
correctly only every other time (only the first, third, fifth, etc., the 
second etc. seem to be ignored):

Grid[{ToExpression["\[" <> # <> "]"],
     Dynamic[CurrentValue[#]]} & /@ {"AltKey", "CommandKey",
    "ControlKey", "OptionKey", "ShiftKey"}, Frame -> All,
  ItemStyle -> {{Large, Automatic}}]

This is both on Linux (SuSE 10.?) and on Windows XP, Mathematica 7.0.1.
Bug or feature?


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