[Tcl-bugs] [ tktoolkit-Bugs-2904708 ] Error from checkbutton bindings when -selectcolor is ""

[SourceForge.net <no...@so...>]

Bugs item #2904708, was opened at 2009-11-26 21:28
Message generated for change (Settings changed) made by dkf
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=112997&aid=2904708&group_id=12997

Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
>Category: 03. [*button] and [label]
Group: current: 8.5.8
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Schelte Bron (sbron)
Assigned to: Jeffrey Hobbs (hobbs)
Summary: Error from checkbutton bindings when -selectcolor is ""

Initial Comment:
I get the following error when I move the mouse pointer over an indicatorless checkbutton:

unknown color name ""
    while executing
"winfo rgb $w [$w cget -selectcolor]"
    (procedure "tk::CheckEnter" line 23)
    invoked from within
"tk::CheckEnter .c"
    (command bound to event)

The checkbutton manual page indicates that "" is a valid value for the -selectcolor option: "If specified as an empty string then no special color is used for displaying when the widget is selected". But the new checkbutton bindings introduced in Tk 8.5.8 don't account for this.

Tested on OpenSuSE 11.2, x86_64, KDE 4.3.1

----------------------------------------------------------------------

Comment By: Schelte Bron (sbron)
Date: 2009-11-30 08:33

Message:
Sorry, this is a dup of 2904492 (due to problems with SF there was quite
some time between searching for an existing bug and finally being able to
submit this one).

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=112997&aid=2904708&group_id=12997