On Fri, May 22, 2009 at 1:49 AM, Chris Colbert <[email protected]> wrote:
> is 'handle()' a method that is called internally when passing extension
> types as parameters?
>

No, it is a "polymorphic" method you have to manually call yourself.
Instead of doing "self.thisptr", you do "self.handle()", just to extra
parents.

> I'm exposing a C function to Python as follows:
>
> def cvSomeFunction(CvArr image):  #image should be able to be CvArr IplImage
> or CvMat
>      c_lib.cvSomeFunction(image.thisptr)    # C func prototype = void
> cvSomeFunction(CvArr* image) and image can be CvArr* IplImage* or CvMat*
>

If you use my trick, the functions should be implemented like this:

def cvSomeFunction(CvArr image):
    c_lib.cvSomeFunction(image.handle())

Did you get the idea ?? Perhaps I'm not being clear enough.

-- 
Lisandro Dalcín
---------------
Centro Internacional de Métodos Computacionales en Ingeniería (CIMEC)
Instituto de Desarrollo Tecnológico para la Industria Química (INTEC)
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
PTLC - Güemes 3450, (3000) Santa Fe, Argentina
Tel/Fax: +54-(0)342-451.1594
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