Re: are canvas coordinates limited to 32k

et99 <et99@rocketship1.me> posted:

Virtuallist should be a good candidate with 2**30 elements displayed as a breeze

https://wiki.tcl-lang.org/page/Virtuallist

It is based on a canvas and display only a part of the elements according to request.

the Hugelist is maybe better formatted to what you need ?

Olivier.

I've been experimenting with placing widgets inside a canvas. When I tried to test it's performance on lots of widgets (in a column) I am seeing the last few widgets not being displayed when the code does
 
[winfo reqheight $content]
 
where content is a frame and the value returned is over 32768 (actually starts failing just shy of that value).
 
This naturally leads me to suspect there's a 16 bit issue here.
 
I'm testing on windows 10, with 8.6 and 9.0 and get the same results.
 
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