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python Programming Glossary: c_void_pHow can I retrieve the signal strength of nearby wireless LAN networks on Windows using Python? http://stackoverflow.com/questions/2851233/how-can-i-retrieve-the-signal-strength-of-nearby-wireless-lan-networks-on-window wlanapi.WlanOpenHandle WlanOpenHandle.argtypes DWORD c_void_p POINTER DWORD POINTER HANDLE WlanOpenHandle.restype DWORD WlanEnumInterfaces.. WlanEnumInterfaces.argtypes HANDLE c_void_p POINTER POINTER WLAN_INTERFACE_INFO_LIST WlanEnumInterfaces.restype.. HANDLE POINTER GUID DWORD c_void_p POINTER POINTER WLAN_AVAILABLE_NETWORK_LIST WlanGetAvailableNetworkList.restype..
How do I convert a Python list into a C array by using ctypes? http://stackoverflow.com/questions/4145775/how-do-i-convert-a-python-list-into-a-c-array-by-using-ctypes a contiguous list of elements in x I tried to cast x to a c_void_p but that didn't work. I also tried to use something like x c_void_p.. but that didn't work. I also tried to use something like x c_void_p 10 for e in y x i e but this gets a syntax error. The C code..
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 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... void So here's how I'm doing this in python smbus_handle c_void_p # NOTE I have also tried it without this line but same result.. smbus_read_byte . I have tried to set open_smbus.restype c_void_p but I get an error TypeError restype must be a type a callable..
What's making this security descriptor go bad? http://stackoverflow.com/questions/5984483/whats-making-this-security-descriptor-go-bad on Windows from ctypes import windll wintypes c_char_p c_void_p byref from win32api import GetCurrentThread from win32security.. wintypes.HANDLE int token AccessDesired byref mapping c_void_p 0 #privilege set optional byref privsetlength #size of optional..
Error with Python ctypes and librsvg http://stackoverflow.com/questions/6142757/error-with-python-ctypes-and-librsvg _fields_ 'PyObject_HEAD' c_byte object.__basicsize__ 'ctx' c_void_p 'base' c_void_p class RSVGHandle object def __init__ self path.. c_byte object.__basicsize__ 'ctx' c_void_p 'base' c_void_p class RSVGHandle object def __init__ self path self.path path.. not segfault. Try this librsvg.rsvg_handle_render_cairo c_void_p self.handle c_void_p z.ctx Notice I wrapped the two parameters..
Using a struct as a function argument with the python ctypes module http://stackoverflow.com/questions/8744246/using-a-struct-as-a-function-argument-with-the-python-ctypes-module INVALID_HANDLE_VALUE 1 LPOVERLAPPED c_void_p LPSECURITY_ATTRIBUTES c_void_p NULL 0 FALSE BOOL 0 TRUE BOOL.. 1 LPOVERLAPPED c_void_p LPSECURITY_ATTRIBUTES c_void_p NULL 0 FALSE BOOL 0 TRUE BOOL 1 def CreateFile filename access..
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