How to activate annotation by clicking

[artemp34831171]

How to activate annotation by cliking on it , I write annotation to bbox on page , I want to highlight it after adding , so that user can see where to click. And also , i want to add clicking fucntionality to it ( activation after clicking ) what callbacks or smth should I use ?

[Thom Parker]

Neither of these can be done with a markup annotation.

What is your ultimate goal? Perhaps there is another way.

[artemp34831171]

I have 3d annotation , my ultimate goal is to allow user to chose what annotation to chose in the current page and select this annotation , after clicking on it , opens external viewer

[Thom Parker]

3D Annots have the advantage or their own JS context and a communication pipe with Acrobat JS. So while it's not possible to select a 3D annot from a script, code can interact with it to do other things.

However, this is the wrong forum for your question. Repost to the 3D forum

[artemp34831171]

Thank you for the answer ! But im using sdk with c++ , I have the code that's creating annotation in bbox

ASFixedRect annotBox = {ASInt32ToFixed(108), ASInt32ToFixed(612 - 108),

  ASInt32ToFixed(792 - 108), ASInt32ToFixed(108)};

  // Add new 3D annot to page

  theAnnot = PDPageAddNewAnnot(pdPage, -2, ASAtomFromString("AnyType"), &annotBox);

  PDAnnotSetFlags(theAnnot, pdAnnotPrint | pdAnnotReadOnly);

  HANDLER

But my question is , how can i write annotation not only in the given box , but how can I do this using the mouse selection area , in any position on the page.

[Thom Parker]

So you are writing a plug-in that the user will use will have installed. That's different, an easy solution is to monitor the mouse buttons and compare clicks against the annot location.

[artemp34831171]

Thank you for the answer ! But how can I monitor mouse buttons ? Which methods / callbacks you will recommend to use ?

[artemp34831171]

And maybe I can somehow highlight the bbox area in which annotation exists , so user can see where to click?

[Thom Parker]

To get mouse clicks you register an event handler for it.

AVAppRegisterForPageViewClicks(AVPageViewClickProc clickProc, void* data)

Look it up.

There are different ways to highlight something on the page. For example, you could create your own selection server, but the easy way is to just draw a rectangle around something when the page refreshes. For this you register another type of handler

void AVAppRegisterForPageViewDrawing(AVPageViewDrawProc proc, void* data)

You should spend some time looking over both the API reference and the usage docs.

Acrobat DC SDK Documentation