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#2800 Wish crash on Windows XP when trying to free a color

obsolete: 8.5.8
open
5
2010-05-14
2010-05-14
No

Hello,

Using a tool emulating an msdos console (dosbox) in order to play old games. This tool change the colormap of the display.
I launch amsn, after what i launch this tool. Then an error message is displayed saying "Tried to free a color that isn't allocated."

I report the bug to the amsn team, which explain me it's linked to tcl/tk library -> http://www.amsn-project.net/forums/index.php/topic,7910.msg46589.html

This bug appears already occur on version 8.4 -> http://sourceforge.net/tracker/?func=detail&aid=1708823&group_id=12997&atid=112997
and on previous version too ? -> http://lists.jabber.ru/pipermail/tkabber/2003-February/000085.html

Regards,
Anael

Discussion

  • Donal K. Fellows

    The problem is that Tk-on-Windows assumes that the Visual (an X11 term that approximately means the bit-depth and how that bit-depth is used) is invariant throughout the run of the program. As you've found out, that's not true! But getting someone who can trigger it (I'm on OSX so can't help at all) and who also knows enough to be able to fix... it's very difficult...

     
  • Anonymous

    Anonymous - 2010-05-14

    Hi,

    As user, could I give more information, use a debug mode or anything other in order to improve the bug understanding / code location ?
    Or any other actions ?

     
  • Anonymous

    Anonymous - 2010-05-15

    Same problem occurs with the 8.6b1 version.

     
  • Donal K. Fellows

    You don't need to give more info. We know what the problem is, and we know it's not fixed yet. The difficulty is in actually doing the fix; it's an area where the code is incomplete and there's a hard-coded assumption that things don't change (when in fact they do, though only rarely).