RE: [C++-sig] RE: ÆC++-sigÅ How to export arrays from C(++) to python using boost
Shukla, Nitin (Export)
nitin.shukla at pw.utc.com
Wed Feb 11 14:54:03 CET 2004
I may need bit more clarification I guess. If I am not wrong
(correct me if I am), your class DLBlob contains an array
(unsigned char) but I couldn't see this class being exported
to python module.
Instead in "BOOST_PYTHON_MODULE" you have exported only
"PyElement" class which exports the functions "Blob2File"
and "File2Blob". You have finally made it by writing the
array into a file and then reading it where it is required.
This spared you from actually exporting an array to python,
which is exactly what I want to do. Let me know if that's
not the correct interpretation of your logic and I have missed
out something here.
Nitin
> -----Original Message-----
> From: Kirsebom Nikolai [mailto:nikolai.kirsebom at siemens.no]
> Sent: Wednesday, February 11, 2004 6:04 AM
> To: Development of Python/C++ integration
> Subject: RE: [C++-sig] RE: ÆC++-sigÅ How to export arrays
> from C(++) to
> python using boost
>
>
>
>
> > -----Original Message-----
> > From: Shukla, Nitin (Export) [mailto:nitin.shukla at pw.utc.com]
> > Sent: 10. februar 2004 18:44
> > To: 'Development of Python/C++ integration'
> > Subject: RE: [C++-sig] RE: ÆC++-sigÅ How to export arrays
> > from C(++) to
> > python using boost
> >
> >
> > Thanks Nikolai. Can you show me the declaration of your class
> > PyElement.
> > That will give me better understanding of your code and help
> > me create my
> > own class.
> >
> > Nitin
> >
> >
>
> There is really not very much in PyElement:
>
> PyElement.h:
> #pragma once
>
> class PyElement : public Element
> {
> public:
> int File2Blob(CString fileName);
> int Blob2File(CString fileName);
> int BlobSize();
> };
>
> The class Element is a 'big' class - and I cannot share the
> complete content
> of it. However, some parts of the class definition is given below.
>
> class AFX_EXT_CLASS Element : public CObject
> {
> ...
> DLBlob GetBlobValue(){return BlobValue;}
> void SetBlobValue(DLBlob BlobValuep)
> {if (BlobValue == BlobValuep) return;
> BlobValue=BlobValuep;
> Modified= TRUE;}
> ...
> }
>
> The class DLBlob is in principle a class wrapping an array
> (unsigned char).
>
> Hope info is of any use
> Nikolai
>
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