[REBOL] Capturing transparent faces.

[Carl Read]

Hi all,

If you have a transparent face in View, it can be used to grab an image of the 
faces under it.  However, I can only get this to work on a layout in an open 
window - when I attempt it on layout, all I get is a black image.

Here's an example of this:  Just run it, click on the "Grab Area" button and 
you'll see what I mean...


rebol []
lo: layout [
    title "Grab area test."
    at 30x20
    b: box 80x30 with [color: none] ; Transparent box.
    button "Grab Area" [
        window-grab: to-image b
        unview/all
    ]
]
lo-grab: to-image b
view lo
view layout [
    backdrop green
    text "Image grab from layout..."
    image lo-grab
    text "Image grab from window..."
    image window-grab
]


So, is there a way to do this on just a layout?

Thanks in advance,

-- Carl Read.

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