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From: Harald Oehlmann <wortkarg3@yahoo.com>
Newsgroups: comp.lang.tcl
Subject: Re: Tklib tooltip usage problem with configure
Date: Wed, 26 Jun 2024 10:17:48 +0200
Organization: A noiseless patient Spider
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Am 26.06.2024 um 09:45 schrieb Mark Summerfield:
> I have added tooltips to some widgets and they work fine. For example:
> 
> package require tooltip
> 
> ...
>      tooltip::tooltip $panel.optionsButton "Modal Show/Hide"
> 
> But the tooltips come with a sort of blue/grey background whereas I prefer
> the more traditional light yellow.
> 
> So I tried this:
> 
> tooltip::tooltip configure -background yellow and got this:
> 
> Error in startup script: invalid command name ".__tooltip__.label"
>      while executing
> "$b.label configure $opt"
>      (procedure "configure" line 13)
>      invoked from within
> "configure {*}$args"
>      (procedure "tooltip::tooltip" line 34)
>      invoked from within
> "tooltip::tooltip configure -background yellow"
>      (procedure "test::make" line 11)
>      invoked from within
> ...
> 
> It is no different if I use ::tooltip::tooltip. And I get a similar error
> if I just try to print the config options, e.g.,
> 
> puts [tooltip::tooltip configure]

The tklib tooltip package has a lot of bugs. You may try the main branch 
version at fossil. I could reproduce the problem you are seeing and it 
is not solved.
BWidget tooltip still has a lot of advantages. Porting all its code to 
tklib would be great...

Sorry, no much help...
Harald