Tk Source Code

Using the Windows operating system, any data copied to 
the clipboard is lost when the Tk based app is exited.

With 2 separate Tk apps, data can be copied to the 
clipboard in App_A and pasted into App_B, as long as 
both apps are running.  But, if data is copied to the 
clipboard in App_A and then App_A is closed, the 
clipboard data is lost and can no longer be pasted.

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Fixed, see 939389

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There is no issue.  When I first tried it, I copied once, and 
then the text is maintained in the clipboard, as jgodfrey 
noted.  That threw me off.

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Hello Jeff Hobbs,

what kind of example/case would be more "elaborate"?

Jeff Godfreys test case ...

  pack [text .t] -expand 1 -fill both
  .t insert 1.0 "This is some text to copy to the
  clipboard"
  clipboard clear
  clipboard append -- [.t get 1.0 end]

... is the most simple one.

Using the ActiveTcl v8.4.3 distribution on MS Windows 2000 
SP3 and Jeff Godfreys test case, I couldn't paste the copied 
text into another application, after (regulary) exiting the 
wish84.exe - e.g. VIM tells me that the "register" is empty.

If I pasted the copied text into another application before
exiting wish84.exe, the text remained in the clipboard
and could be pasted to other applications too.

Everything is like Jeff Godfrey described initially.

But ... this behaviour is wellknown for me since tcl/tk v8.0.x
and was documented to/for the core team since this
early v8.x times.

What did you, Jeff Hobbs, do to be able to paste copied
text in another application, after exiting wish84 and not 
pasting it before exiting wish84?

Best regards,

Martin Lemburg

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At least under Windows 98 (and ActiveTcl 8.4.2), the 
following code illustrates the problem:

pack [text .t] -expand 1 -fill both
.t insert 1.0 "This is some text to copy to the clipboard"
clipboard clear
clipboard append -- [.t get 1.0 end]

Note that after running the code, the text string can be pasted 
back into the Text widget using Ctrl-V (proving that it *has* 
been copied to the clipboard).  Now, exit the Tk application, 
and try to paste the text into another application - the 
clipboard is empty.  Interestingly, if the text is pasted into 
another app at last once while the Tk app is running, it seems 
to still be available in the clipboard after the Tk app has 
exited...

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I have found this to not be the case in 8.4, at least when 
using the text widget.  It should store the data on app exit 
(regular app exit, not abnormal exit).  Can you provide a more 
elaborate case?