Hi, I'm working on some program (Perl/tk), which have a window with canvas, where some numerical data is graphically represented. There should be a possibility to resize the window, together with canvas inside... Ok, the window and canvas do rescale (simply with mouse at the window corner). The problem is, the content of canvas stays as it was. Rescaling of contents is pretty simple, however to do that, I need to know the new width and height of canvas... How to do that? I tried to use 
my $newx = $Mycanvas -> cget(-width);

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But it does not seem to work (it always shows the initial value). Second problem, how to run rescaling automatically after window has been resized? Is there any binding, or whatever? Of course, I can always make button "Update", but this is not so nice...

In reply to Automatic canvas content rescaling by TheMarty

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