How to highlight specific words in the Reader

Hi!
I am new to the Acrobat SDK and could need some guidance on how to solve the following problem:
I need a plug-in that is able to highlight specific words in a pdf file (e.g. by underlining it or changing the background color) and offers a context menu with futher actions when the user clicks on a highlighted word. The first step would be searching the text to find the word that should be marked. I think that should not be that hard but how can I highlight specific words? I first thought of annotations but I need it in the Reader and I should not change the pdf file itself (just the view of it).
The idea is similar to the skype plug-in for Firefox or IE. The skype plug-in highlights phone numbers. We need to highlight specific words.
Thanks for every hint on how to achieve this!
Fabian

>The documentation says that AVPageViewHilightText is supposed to use >the current color set with AVPageViewSetColor - so it should work. >What version of Acrobat are you working with?
Yes that how understood the documentation too. I tried the following:
//Define red
red.space = PDDeviceRGB;
red.value[0] = ASInt32ToFixed(1);
red.value[1] = 0;
red.value[2] = 0;
// highlight
AVPageViewSetColor(pageView, &red);
PDTextSelect pdTextSelect = PDDocCreateTextSelect(pdDoc, pageNum, &bbox);
AVPageViewHighlightText(pageView, pdTextSelect);
I am using Acrobat 7.0.9.
>Drawing an image would be done with AVPageViewDrawCosObj
>- which means you'll need to bring the image in as a PDF
> object and then render it.
Oh I should have seen that. Thanks for the hint!!
>Interesting, there should be a way to get transparency,
> but I am not seeing it at the moment.
As far as I understood it, it is possible to set the color to transparent but thats not what I am looking for. I would like to have a way of changing the alpha channel of the color.
Thanks!
Fabian

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