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How to check if a label is in menu or not?
I want to know if a label is in the menu or not before adding it. I was expecting [$menu index $label] to return a negative value if not. But to my surprise, it errs. Then I had a hard time to figure out a way, much longer than a minute! Is there a built-in way of getting the number of the... -
How to disable/enable a notebook page?
Say, I create a page set notebook [NoteBook $frame] set pageframe [$notebook insert end page1 -text "Apple"] How can I disable it? Thanks.
