Re: [Swig-user] Use %extend with private members?

[William S F. <ws...@fu...>]

gga wrote:
> sw...@m4... wrote:
>> Is it possible to use %extend and access a private cpp variable? 
> 
> No.  It is a feature (read: misfeature) of C++ that private elements
> cannot be accessed.
> You can only work around it if you use pointers and guesstimate where
> the private variable is aligned in the class.  See below.
> 
>> I hava
>> not found anything in the docs that is allowing this and suspect there
>> will be no way. Correct?
>>
> 
> There is at least one way I found to access "protected" elements.
> 
> For protected elements or functions, you can avoid hacking the .h file
> if you create your own proxy class that adds a method to access it.
> Unfortunately, this also means your .i file and .h file need to be kept
> in sync, as you will need to list all of your class methods.  I wish it
> was possible to avoid this somehow, but have not found a way yet.
> 

If you use directors, protected virtual methods are accessible. Only the
virtual methods are available, ie, protected non-virtual methods,
protected static methods, protected static variables and protected
member variables are not available. Directors could be extended to make
these available though.

William