issue with annotation flags

[Pablo Rodriguez <oinos@gmx.es>]

Dear list,

I have the following code:

    \setupinteraction[state=start, color=]
    \enabledirectives[references.border]
    \starttext
    \startTEXpage[offset=1em]
    \useURL[url1][http://some-url.com]\from[url1]
    \stopTEXpage
    \stoptext

The annotation code in the PDF file reads:

    << /Subtype /Link
           /A 7 0 R /Rect [12.354 10.896 131.607 25.324]
           /C [0.6 0.6 0.6]
           /F 4
           /Border [0 0 0.5]>>

I need to report a bug in a PDF viewer with printing the annotation (in
this case, it is only border).

The code that generates the annotation is (with some removals):

    local plus = { -- /F
        Invisible         = 2^0, --   1
        Hidden            = 2^1, --   2
        Print             = 2^2, --   3
        NoZoom            = 2^3, --   4
        NoRotate          = 2^4, --   5
        NoView            = 2^5, --   6
        ReadOnly          = 2^6, --   7
        Locked            = 2^7, --   8
        ToggleNoView      = 2^8, --   9
        LockedContents    = 2^9, --  10,
    }

I assume that /F is set to NoZoom in the sample above (bit position 4).
Acrobat displays the annotation flag set to NoZom.

The developers assume that 4 is actually the decimal conversion for a
binary number (100, actually bit position 3). So it prints the
annotation border in the sample above.

It took me a while to understand this (math is all Greek to me).

Is there a way that I can set the annotation flag in the sample above to
Print (/F 3)? (This would be unambiguous, since only a bit can be set
[11 would be an invalid flag value].)

Or am I missing something and Acrobat is misbehaving?

Sorry for such a weird request, but bug reporting has become extremely
complex these days ;-).

Many thanks for your help,

Pablo
-- 
http://www.ousia.tk
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