Possible : stack with transparent backgound?

[David Bovill]

Yes. Not sure but I think this will nuke all the other layers - I’m hoping that an ink on an object can prevent this from being transparent as well. I don’t think that is possible/

Use case scrolling text over a live video.
On 10 Sep 2020, 23:13 +0100, Bob Sneidar via use-livecode <use-livecode at lists.runrev.com>, wrote:
> I believe you can add an alpha channel to mask the stack. I have never done it, but I heard it discussed a number of times.
>
> Bob S
>
>
> > On Sep 10, 2020, at 2:41 PM, David Bovill via use-livecode <use-livecode at lists.runrev.com> wrote:
> >
> > Id like to create a stack - has to be a stack - and for the text and some other elements to be visible but the stack background to be transparent - is this possible with some combination of inks and masks and blend levels?
> > On 2 Sep 2020, 22:03 +0100, Bob Sneidar via use-livecode <use-livecode at lists.runrev.com>, wrote:
> > > It appears I have that backwards?
> > >
> > > Bob S
> > >
> > >
> > > > On Sep 2, 2020, at 8:28 AM, Bob Sneidar <bobsneidar at iotecdigital.com> wrote:
> > > >
> > > > Ditto, and I am not sure what noticeable impact one method would have over another. There was some blurb a long time ago about how these keys are internally sorted. I believe what was proposed is that a set of NUMERIC keys beginning with 0 would actually sort correctly.
> > > >
> > > > Bob S
> > > >
> > > >
> > > > > On Sep 2, 2020, at 8:24 AM, Ralph DiMola via use-livecode <use-livecode at lists.runrev.com> wrote:
> > > > >
> > > > > David,
> > > > >
> > > > > Nope you have to sort them NUMERIC. As you said this is the only way I know of. I do this all the time. I don't know of any other way.
> > > > >
> > > > > put the keys of tMyArray into tKeys
> > > > > sort lines of tKeys numeric
> > > > > repeat for each line tKey in tKeys
> > > > >
> > > > > -- do what you want with tMyArray[tKey]
> > > > > -- this line will put the array data in the message box (assuming there is no other sub keys in each numeric array entry).
> > > > > put tMyArray[tKey] into tMyVar
> > > > >
> > > > > end repeat
> > > > >
> > > > > Ralph DiMola
> > > > > IT Director
> > > > > Evergreen Information Services
> > > > > rdimola at evergreeninfo.net
> > > > >
> > > > > -----Original Message-----
> > > > > From: use-livecode [mailto:use-livecode-bounces at lists.runrev.com] On Behalf Of David Bovill via use-livecode
> > > > > Sent: Wednesday, September 02, 2020 10:55 AM
> > > > > To: How to use LiveCode
> > > > > Cc: David Bovill
> > > > > Subject: Looping though a numerically indexed array
> > > > >
> > > > > I’m pretty sure there must be a way to efficiently loop through numerically indexed arrays
> > > > >
> > > > > Repeat for each key and repeat for each element does not seem to sort the keys in numeric order,. Of course I can get the keys and sort them before repeating - but is there a more efficient way?
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