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Re^7: Question about embedded Tk::Canvas

by kschwab (Priest)
on Nov 20, 2013 at 19:54 UTC ( #1063589=note: print w/ replies, xml ) Need Help??


in reply to Re^6: Question about embedded Tk::Canvas
in thread Question about embedded Tk::Canvas

Looking at your code on github, it's because of this:

my $canvas = $Mainwin->Scrolled('Canvas')->grid; my $real = $canvas->Subwidget("canvas");
Based on your choice of the variable name $real, you seem to already know what the issue is here :) $canvas isn't a 'Canvas'.


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Re^8: Question about embedded Tk::Canvas
by emilbarton (Scribe) on Nov 20, 2013 at 20:11 UTC
    Hey, I always wondered was real meant in this way.. I think I just copied from TextUndo tricks I had to use somewhere else. Maybe it's not of any use here.
Re^8: Question about embedded Tk::Canvas
by emilbarton (Scribe) on Nov 22, 2013 at 07:04 UTC
    No I'm sorry, removing this workaround doesn't change anything, and I'll have to try your first proposal... In the meantime I found where this comes from: I had experienced key-binding problems in Scrolled TextUndo widgets and could apply with success Zentara's tip given here Re^3: Tk hidden binding, so to be on the safe side, as my canvas is scrolled too, I just applied the same here in prevision of possible key-bindings and problems. Anyway, I must acknowledge I often copy and paste bits of code without always being sure they're appropriate, when it works no further verification is made (shame on me!).

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