I have the following CPython code which I now try to run in IronPython: import ctypes class BarHeader(ctypes.Structure):
I need to pass a callback function that is CF开发者_开发技巧uncType (ctypes.CFUNCTYPE or ctypes.PYFUNCTYPE...).
I\'m having a lot of fun learning Python by writing a genetic programming type of application. I\'ve had some great advice from Torsten Marek, Paul Hankin and Alex Martelli on this site.
Alright, so a couple days ago I decided to try and write a primitive wrapper for the PARI library. Ever since then I\'ve been playing with ctypes library in loading the dll and accessing the functions
Please don\'t get scared but the following code, if you are familiar with ctypes or C it should be easy to read.
I am dealing with image buffers, and I want to be able to access data a few lines into my image for analysis with a c library.I have created my 8-bit pixel buffer in Python using create_string_buffer.
I need to call a c library from my python code.The c library does a lot of image manipulation, so I am passing it image buffers allocated using create_string_buffer.
The C function myfunc operates on a larger chunk of data. The results are returned in chunks to a callback function:
I am trying to access a dll located in the \"c:/Program Files (x86)\" folder in a 64-bits processor PC.
int(c_lo开发者_JAVA百科ng(1)) doesn\'t work.>>> ctypes.c_long(1).value 1 Use the \'value\' attribute of c_long object.
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