Ok, I get what your saying. that's a good idea and I think it's a little cleaner than casting during the call.
Thanks! Chris On Fri, May 22, 2009 at 10:17 AM, Lisandro Dalcin <[email protected]> wrote: > 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 > _______________________________________________ > Cython-dev mailing list > [email protected] > http://codespeak.net/mailman/listinfo/cython-dev >
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