Shared Libraries Example

[Trevor:]

Hi

Chapter 7 of the Javascript tools guide talks about using external shared libraries.

Direct access to library calls through the ExternalObject instance — Use the direct-access style

for C-language libraries. For each function defined in the C library, there is a corresponding method in

the ExternalObject object. You can pass data to these methods and receive the return value directly.

For example:

mylib = new ExternalObject ("lib:" + samplelib); // load the library

It also states

"Indirect access to library calls through JavaScript classes — Use the indirect style to access classes defined in a C++ library. For each C++ class defined in the library, a corresponding JavaScript class is automatically defined, and you can access the properties and methods through an instance of that

class."

Does anyone have a sample (source code) of an external library preferably both for direct and indirect access that can be access using the new ExternalObject ("lib:" + samplelib); method?

TIA

Trevor

[Harbs.]

From the CEP for Developers docs:

The above example assumes that you have loaded the PlugPlug External Object library. In InDesign CC 2014.1/CEP 5.2, this library can be loaded using the following:

var plugplugLibrary = new ExternalObject("lib:\PlugPlugExternalObject");

In earlier versions of InDesign CC, you will have to load the PlugPlug External Object library as a file:

//Where "file" is the File object containing the library:
var plugplugLibrary = new ExternalObject("lib:" + file.fullName);

Does that answer your question?

Harbs

[Harbs.]

A bit more:

Indirect access would be something like this (once the library is loaded):

var csxsEvent = new CSXSEvent();
csxsEvent.type = idSelectionChanged";
csxsEvent.data = "Selection changed!";
csxsEvent.dispatch();

This works because CSXEvent is defined as a C++ class in PlugPlug.

If there would be methods in PlugPlug, you could do something like this for direct access:

plugplugLibrary.doSomething()

HTH,

Harbs

[Trevor: · Accepted solution]

Hi Harbs

Thanks for taking a look.

That's not what I was after (I've used "ready made" libraries quite a bit)

I am looking for is how to make my own library.

So I'm looking for an example of the raw c / c++ code using in making a library.

A "Hello World" example would be great.

Hey, what a jerk, me not you I just noticed that right at the beginning of chapter 7 it says

Example code

The sample code distributed with the Adobe ExtendScript SDK includes an example that demonstrates

how write a C/C++ shared library to be integrated with JavaScript. It is in the directory:

sdkInstall/sdksamples/cpp/

The sample shows how to write a plug-in for Adobe Bridge in C/C++, using the ExternalObject

mechanism, which enables the C/C++ code to be called from the JavaScript context. Project files for

Microsoft Visual Studio 2005 and XCode 2.4 are included in subfolders of

sdkInstall/sdksamples/cpp/build.

If I get stuck I'll add another post.

Thanks again,

Trevor

[cqt18342843]

Where is the  Example code

I can't find it   in   After Effects 7.0r3 SDK\ Examples

[Dirk Becker]

The ExtendScript SDK typically is a separate package.

Watch out for "basicexternalobject" in a "SDK" folder near your ExtendScript Toolkit installation.

Bridge also has a similar download at Adobe I/O Console

Looking at folder level there are already differences, maybe you get something working with a cross-breed?

Good luck