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Exception thrown when unlocking the computer #3885

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nvaccessAuto opened this issue Feb 14, 2014 · 3 comments
Closed

Exception thrown when unlocking the computer #3885

nvaccessAuto opened this issue Feb 14, 2014 · 3 comments
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bug close/worksforme feature/browse-mode

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@nvaccessAuto
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Reported by aliminator on 2014-02-14 09:47
A traceback is being produced when doing the following:

  1. Start IE or Firefox 2. Press windows+l to lock the computer and then unlock it.
    This is the traceback:
    ERROR - NVDAObjects.behaviors.Dynamic_IAccessibleWinConsoleWindowNVDAObject._monitor (10:42:34):
    Error getting initial lines
    Traceback (most recent call last):
    File "NVDAObjects\behaviors.pyc", line 247, in _monitor
    File "NVDAObjects\window\winConsole.pyc", line 48, in _getTextLines
    File "winConsoleHandler.pyc", line 121, in getConsoleVisibleLines
    File "wincon.pyc", line 70, in GetConsoleScreenBufferInfo
    WindowsError: 6 Handle invalid.

This does happen with the today's master version.
@nvaccessAuto
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Comment 1 by jteh on 2014-02-14 10:12
This suggests something you have installed is very briefly opening a command console every time you unlock your computer, which is quite strange. It's a harmless error and I suspect this is not a regression; it will very probably happen sometimes with older versions of NVDA.

@bhavyashah
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@jcsteh's #3885 (comment) seems to suggest that this is an issue that happens with older versions of NVDA. Using a recent NVDA Master snapshot on Windows 8.1 (probably without any extra command console), I was unsuccessful in replicating the reported exception with the following STR:

  • Focus on a Mozilla Firefox (version 54 stable here) window.
  • Press Windows+L.
  • Press any key (e.g. Tab) to get back out of the lock screen.
    NVDA does not play the error sound during any of the above steps.
    Since we cannot contact the original author of this ticket anymore, this ticket is more than three years old, the described exception is being thrown due to an external software (command console in this case), and Jamie considers this harmless. Time to close? @ehollig

@ehollig
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ehollig commented Aug 16, 2017

As this sounds to be a harmless error and it does not occur anymore, closing

@ehollig ehollig closed this as completed Aug 16, 2017
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@nvaccessAuto @bhavyashah @ehollig