From: "Albert L. Wagner" <alwagner@...>
Date: 2001-08-01T22:20:47+09:00
Subject: [ruby-talk:18956] Re: Tk bind to 'FocusOut' causes segfault

P.S.  This problem only appears on Win2k at work.  It runs fine
at home on my Linux box.

"Albert L. Wagner" wrote:
> 
> Using Tk, attempts to capture 'FocusOut' event, are causing a
> segfault.  I am new to Tk.  Can someone point me in the right
> direction?  I've attached the code and the stackdump.
> 
> #<TkComm::Event:0xa1486a0  @y_root=37805804, @x_root=38411168,
> @widget=#<TkEntry:0xa13cc58  @path=".w0001.w0015">, @type=9,
> @subwindow="0x0", @rootwin_id="0x0", @keysym_num=0, @keysym="??",
> @send_event=false, @wheel_delta=262956, @borderwidth=38411168,
> @char="??", @y=0, @x=0, @width=0, @time=0, @state=0,
> @place="PlaceOnTop", @override=false, @mode="NotifyNormal",
> @keycode=262956, @height=0, @focus=false,
> @detail="NotifyAncestor", @count=0, @num=262956, @above="??",
> @serial=138>
> focus in
> /cygdrive/d/ruby/lib/ruby/1.6/tk.rb:606: [BUG] Segmentation fault
> ruby 1.6.4 (2001-06-04) [i386-cygwin]
>       0 [sig] ruby 1068 stackdump: Dumping stack trace to
> ruby.exe.stackdump
> 
> Tool completed with exit code 99840
> 
> --
> "It requires wisdom to understand wisdom:
>  the music is nothing if the audience is deaf."
>  - Walter Lippman
> 
>   -----------------------------------------------------------------
>                   Name: tkMyMain.rb
>    tkMyMain.rb    Type: Ruby Program (application/x-unknown-content-type-rbFile)
>               Encoding: base64
> 
>   -----------------------------------------------------------------
> Stack trace:
> Frame     Function  Args
> 0240E060  77E88787  (000000B8, 0000EA60, 00000000, 610433F9)
> 0240E0B0  77E88787  (00000000, 1C0E55C6, 67D0B2C7, 61041CE5)
> 0240E100  61041FF2  (00000006, 0000042C, 0243C7F0, 000000B8)
> 0240E130  6103FBA8  (0000042C, 00000006, 61041EA4, 000000B0)
> 0240E160  6103FD3E  (0000042C, 00000006, 024A4120, 02474D00)
> 0240E180  61076584  (6108D010, 0000042C, 00000006, 0240E1E0)
> 0240E1B0  6106C278  (6108D010, 00000006, 0240E1E0, 00000016)
> 0240E1D0  6106C250  (00000006, 67D0B2ED, 67D0B2E7, 67D0B2DC)
> 0240E1F0  61068E8C  (00000000, 1C14986E, 0240E238, 1C0E1A1F)
> 0240E610  67D0B36B  (67D6A29F, 00000000, 00000000, 0240E660)
> 0240E630  67D6A2C7  (0000000B, 00000000, FFFFFFFF, 00000003)
> 0240E660  6100DE1F  (00000003, 0240E680, 1C1A4A10, 00000003)
> 0240E66C  1C1A49F4  (00000003, 024F3072, 0240E7DC, 0240E7DC)
> 0240E680  1C1A4A10  (0240E6C8, 00000003, 00000030, 00000006)
> 0240E7DC  1C1B1164  (024473A0, 024F3072, 024F4628, 00000000)
> 0240EA54  1C1AFFAC  (0243C190, 024F4628, 024473A0, 00000004)
> End of stack trace (more stack frames may be present)

-- 
"It requires wisdom to understand wisdom:
 the music is nothing if the audience is deaf."
 - Walter Lippman