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python Programming Glossary: ctypes.c_void_p

How to specify buffer offset with PyOpenGL

http://stackoverflow.com/questions/11132716/how-to-specify-buffer-offset-with-pyopengl

to pass a ctypes void pointer which can constructed by ctypes.c_void_p offset There seems to be a more PyOpenGL specific option using..

Getting pyobjc object from integer id

http://stackoverflow.com/questions/12328143/getting-pyobjc-object-from-integer-id

ctypes.py_object _objc.PyObjCObject_New.argtypes ctypes.c_void_p ctypes.c_int ctypes.c_int def objc_object id return _objc.PyObjCObject_New..

How can I use a DLL from Python

http://stackoverflow.com/questions/252417/how-can-i-use-a-dll-from-python

call. # HLLAPI hllApiProto ctypes.WINFUNCTYPE ctypes.c_int ctypes.c_void_p ctypes.c_void_p ctypes.c_void_p ctypes.c_void_p hllApiParams.. ctypes.WINFUNCTYPE ctypes.c_int ctypes.c_void_p ctypes.c_void_p ctypes.c_void_p ctypes.c_void_p hllApiParams 1 p1 0 1 p2 0 1.. ctypes.c_int ctypes.c_void_p ctypes.c_void_p ctypes.c_void_p ctypes.c_void_p hllApiParams 1 p1 0 1 p2 0 1 p3 0 1 p4 0 # Actually..

Python & Ctypes: Passing a struct to a function as a pointer to get back data

http://stackoverflow.com/questions/4351721/python-ctypes-passing-a-struct-to-a-function-as-a-pointer-to-get-back-data

how I've set up the art types smbus_read_byte.argtypes ctypes.c_void_p ctypes.POINTER SMB_REQUEST I've tried casting but still no go...

Passing Numpy arrays to a C function for input and output

http://stackoverflow.com/questions/5862915/passing-numpy-arrays-to-a-c-function-for-input-and-output

'. ctest.so' fun lib.cfun # Here comes the fool part. fun ctypes.c_void_p indata.ctypes.data ctypes.c_void_p outdata.ctypes.data print.. the fool part. fun ctypes.c_void_p indata.ctypes.data ctypes.c_void_p outdata.ctypes.data print 'indata s' indata print 'outdata s'.. to the C function. Change your Python code from fun ctypes.c_void_p indata.ctypes.data ctypes.c_void_p outdata.ctypes.data To fun..

Benchmarking (python vs. c++ using BLAS) and (numpy)

http://stackoverflow.com/questions/7596612/benchmarking-python-vs-c-using-blas-and-numpy

byref n byref n byref n byref one m1.ctypes.data_as ctypes.c_void_p byref n m2.ctypes.data_as ctypes.c_void_p byref n byref zero.. ctypes.c_void_p byref n m2.ctypes.data_as ctypes.c_void_p byref n byref zero r.ctypes.data_as ctypes.c_void_p byref n.. ctypes.c_void_p byref n byref zero r.ctypes.data_as ctypes.c_void_p byref n the test code looks like this r numpy.zeros i i numpy.float32..