Window decorations and the effective rect issue

Mark Waddingham mark at
Wed Sep 9 20:32:08 CEST 2015

This sounds like there's a legacy flag on those older stacks but I'm not sure what it might be.

If you file a bug report and attach one of the stacks or send one to Hanson we'll take a look.


Sent from my iPhone

> On 9 Sep 2015, at 19:11, Paul Dupuis <paul at> wrote:
> I have an application (main stack + many substacks + several external
> stacks) that is ancient (originally built in HyperCard, ported to
> Supercard, ported to Metacard, and on up to LiveCode 6.7.6.
> I was working on redoing some of the legacy screen layout code today -
> taking advantage of 'the working screenrect' (working didn't exist way
> back when) and 'the effective rect' of a stack (effective wasn't
> available either)
> A multi-window layout should now be as easy as get the working
> screenrect and divide it up and set the effective rect of the stacks
> (windows) to the divided up values. No more fudge factors for varying OS
> window borders and title bars and such. Yea!
> However, I have run into a puzzler. Under Windows 8 (and Win 7) when I
> set the effective rect of a stack to 0,0,x,y or set the effective
> topLeft of a stack to 0,0, that stack is NOT taking into account the
> wider window borders of Windows 7 and 8 and is positioning the stack
> with part of its borders off screen - it is like the stack thinks it's
> window borders were the thinner ones back under Windows 2000 or XP!
> This only occur with old stacks in the application - i.e. stacks
> originally migrated from HyperCard > SuperCard > Metacard >Revolution.
> If I create a new "Untitled 1" substack in the old legacy mainstack and
> set it's effective topLeft to 0,0, it renders exactly as expected.
> I tried cloning (as in "clone stack <name>" one of the legacy stacks and
> it also thinks it has thinner window borders that it really does.
> All these stacks have been saved from LC676 in the latest stack format
> (the were previously in LC464). I created a new test mainstak and
> substack in LC676 and the effective keyword works exactly as expected
> with stacks. I also created an identical test stack under LC464 (the
> oldest version I have) and the tried that under LC676 and it works
> exactly as expected.
> I just appears to be really ancient stacks that have been
> imported/migrated rather than any new stacks. Has anyone seen anything
> like this?
> I'd rather not have to recreate each of these legacy stack by creating a
> new "Untitled" stack and populating all the objects, scripts,
> properties, etc, to fix this issue.
> Paul Dupuis
> Researchware
> _______________________________________________
> use-livecode mailing list
> use-livecode at
> Please visit this url to subscribe, unsubscribe and manage your subscription preferences:

More information about the use-livecode mailing list