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Oct 06
Saturday
ObjectARX
Object ARX software development kit
6 Comments Oct-06-2007 | Posted by M. Mazhar Basa | Printable Version | Level |

Hello everybody,

Today I would like to introduce Object ARX Software Development Kit (SDK). You can download your free copy of ARX SDK from www.objectarx.com or www.autodesk.com/objectarx. Click on Samples and Documentation and download executable achieves depending on the version of AutoCAD for which you want to develop ObjectARX applications.

Extract them into your hard drive, and you will get the content as shown in Fig. 1.

Fig.1
Fig. 1 Contents of ObjectARX SDK

For different version contents of SDK changes, however general structure and usage is same only some utilities, documentation and samples change depending on the new features introduced in each version of AutoCAD and also in ObjectARX. Of course, the contents of lib and inc folders also change, but you cannot already use them to develop applications for other versions.

Now, let’s go over each of each folder in SDK.

ARXLABS

In this folder you will find the tutorial help file for developing ObjectARX applications. If you are not familiar with concept of programming with C++ and Visual Studio, it will be hard to follow these tutorials. However, if you follow the instructions one by one it would be a great practice to develop your first ObjectARX application.

DOCS

In this folder you will find the other help files. The main file is arxdoc, which includes all of the other help files. But I suggest you to create a shortcut to your desktop or elsewhere for arxdev, which will be the main reference as it includes definitions of all of AutoCAD’s components that can be used in development of ObjectARX applications.

LIB – INC

These two folders are where you can find the library and header files that Visual Studio will be linked to, in order to create ObjectARX applications.

SAMPLES

Here you can find the samples for ObjectARX projects. They are also classified for different subjects. Unfortunately they include only the files that make up the project, so they need to be compiled with Visual Studio to create the ObjectARX application.

CLASSMAP

In this folder there is an AutoCAD drawing file that shows the classes included in the SDK and their hierarchy. These classes are originally the real classes that are used in AutoCAD. What the SDK does is, it gives the programmer access to these classes by the library files and header files in inc and lib folders so that we can use these classes and their full functionality to develop our applications or create our own classes from them.

REDISTRIB

In this folder there are some files that can be included in redistribution packages, so that we can create our own installation files.

UTILS

In this folder, you can find utility files. Depending on the AutoCAD version, there are different utility programs in this folder. The most important utility program to be used, especially if you are new to ObjectARX programming, is ARXWizards. When you install ARXWizards, then your Visual Studio will obtain the functionality to create ObjectARX applications from templates and other wizards for implementing members and classes inside Visual Studio in a very easy way.

That’s all for today. Have a nice day.

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6 Responses to “ Object ARX software development kit ”
  1. Johnny
    Dec 27, 2006
    Reply

    Hi, I would like to know if you know a website where I can find several examples.

    Thank you for your help.

  2. Mazhar Basa
    Dec 28, 2006
    Reply

    Hi Johnny,

    First I suggest the samples in SDK, then http://arxdummies.blogspot.com/ which is prepared by Fernando Malard. He is a real specialist in ARX development. I learned a lot from him. You can find several examples there.

    You can also check http://discussion.autodesk.com/forum.jspa?forumID=34 which is the official AutoCAD ObjectARX development forum, you can find not only small examples but also answers to lots of questions, and solutions to common problems you will encounter while developing ARX applications.

  3. Stefo
    Jul 22, 2008
    Reply

    Hello,

    Before I start with any installation I want to understand something.
    There are different OBJARX version for every ACAD version. Does that mean that with objarx 2000 my programs will not run on ACAD 2007? And one more thing – objarx 2000 works with VS 6. And what needs then the higher version objarx? Maybe VS 2005 or more?
    The compatibility is the most important thing.

  4. Ervin Djogic
    Sep 5, 2008
    Reply

    Hello

    I have a problem with PSEUDO defined database object.

    Pseudo classes (pseudo defined database objects) is method to substitute run-time class only to alter some behavior or to store additional run-time information. They are saved to file as their base class.

    I have to register my custom classes that when i am reading DWG file and parsing every element, RealDWG library have to get me pointer to the my derived class, (i do not want pointer to the general entity like AcDbPoint), it must be pointer to the derived class (like EXAcDbPointer). This is something like overriding hole entity AcDbPoint with my custom entity ExAcDbPoint, that i can for every point during read DWG file, have pointer to the my derived class ExAcDbPoint.

    class ExAcDbPoint : public AcDbPoint
    {
    public:
    ACRX_DECLARE_MEMBERS(ExAcDbPoint);
    …etc…

    With library DWGDirect++, it is possible to do this behaviour with macros for PSEUDO defines object:

    ODDB_PSEUDO_DECLARE_MEMBERS()
    ODDB_PSEUDO_DEFINE_MEMBERS()

    Is there in RealDWG library somthing that i can call, that can have my custom classes defined and declared as PSEUDO.

    I am porting my application from DWGDirect to the RealDWG and this is importatn for my continoues work on this port.

    Regards
    Ervin

  5. nahed
    Sep 7, 2008
    Reply

    a good website thanks
    http://www.max4object.com

  6. Steven
    Sep 30, 2008
    Reply

    I came across a software, Progecad, I wonder if anyone ever tried this CAD software, apparently I went into their comparison chart between Progecad and autocad, I notice that, Progecad do not offer Object ARX in their version of the software. At this point I want to know if this ObjectARX is so vital that it can enchance the work performed over in Autocad. Now I’m in the midst of proposing the software to use in our company. So I’m doing a comparison with respect to this software. Please help.

    Regards,
    Steven


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