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Topic: Re: How can we get bookmark index from current page?
Conf: (P-PDF) Developers, Msg: 57267
From: LeonardR
Date: 5/29/2002 05:24 PM

[copy of answer posted to another PDF list]

At 8:15 AM -0500 12/21/00, p-pdf-developer Listmanager wrote:
>I am developing a plug-in for acrobat reader.In the case, I want to
>get the relationship of bookmark and current page. After I read all
>SDK documents, there is no issue found for solving this problem.
>I think it may be solved by two approaches if they are possible.

There is no "easy" answer to this because there does not
necessarily have to be any relationship.

Bookmarks are simply a UI element (mostly) that have actions
attached to them - these actions can be (and in most cases are) "Go
To Page" actions, BUT they could just as easily be anything from
playing a movie to running a JavaScript.


>First: If I get an active PDDoc by function "AVDocGetPDDoc" and its page
>number, how can I get the corresponding bookmark index/ID?

You have to walk the bookmark tree, get each bookmark's
action, determine if the action is a GoTo, and if so, what page
number and then compare the page numbers.


>Second: If I get bookmark root by function "PDDocGetBookmarkRoot",
>how can I obtain corresponding pages and their child's pages?
>
Same thing - get the action (PDBookmarkGetAction), get the
type of action (PDActionGetSubtype) and see if it's GoTo. If it is,
then get the page number from the dictionary.


>Merry Xmas, API developer
>
Do keep in mind that people celebrate holidays OTHER THAN that one...


Leonard
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Leonard Rosenthol
Sr. Software Engineer (215) 922-3509 (voice)
Digital Applications (215) 440-0504 (fax)

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