Keyhole effect?

Brian Milby brian at
Tue Apr 14 18:36:12 EDT 2020

We had a discussion in 2018 about using a hex shaped grc to split up an
image (started by Richmond).  The key line there was:

set the backPattern of grc "hex" to the ID of img "box"

Since attachments and stacks were involved, I'm pretty sure it took place
on the forums.  I'm not sure if this will accomplish what you're looking
for though.  I can send a stack off list if you'd like to see it.

On Tue, Apr 14, 2020 at 5:32 PM Richard Gaskin via use-livecode <
use-livecode at> wrote:

> Back in the day I could easily make a sort of keyhole effect, in which I
> used one graphic to obscure an image, and a second graphic on top as a
> mask to define a shape (such as a keyhole) through which I could see a
> portion of the image.
> It was done easily enough with inks.
> Inks that, it seems, we no longer have.
> So given the subset of inks we're now limited to, has anyone here seen
> firsthand an example of this in LC v9.x?
> --
>   Richard Gaskin
>   Fourth World Systems
>   Software Design and Development for the Desktop, Mobile, and the Web
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