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Title: ctypes — A foreign function library for Python — Python 3.15.0a5 documentation

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Description: Source code: Lib/ctypes ctypes is a foreign function library for Python. It provides C compatible data types, and allows calling functions in DLLs or shared libraries. It can be used to wrap these ...

Open Graph Description: Source code: Lib/ctypes ctypes is a foreign function library for Python. It provides C compatible data types, and allows calling functions in DLLs or shared libraries. It can be used to wrap these ...

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Links:

	https://www.python.org/
Table of Contents	https://docs.python.org/dev/contents.html
ctypes — A foreign function library for Python	https://docs.python.org/dev/library/ctypes.html
ctypes tutorial	https://docs.python.org/dev/library/ctypes.html#ctypes-tutorial
Loading dynamic link libraries	https://docs.python.org/dev/library/ctypes.html#loading-dynamic-link-libraries
Accessing functions from loaded dlls	https://docs.python.org/dev/library/ctypes.html#accessing-functions-from-loaded-dlls
Calling functions	https://docs.python.org/dev/library/ctypes.html#calling-functions
Fundamental data types	https://docs.python.org/dev/library/ctypes.html#fundamental-data-types
Calling functions, continued	https://docs.python.org/dev/library/ctypes.html#calling-functions-continued
Calling variadic functions	https://docs.python.org/dev/library/ctypes.html#calling-variadic-functions
Calling functions with your own custom data types	https://docs.python.org/dev/library/ctypes.html#calling-functions-with-your-own-custom-data-types
Specifying the required argument types (function prototypes)	https://docs.python.org/dev/library/ctypes.html#specifying-the-required-argument-types-function-prototypes
Return types	https://docs.python.org/dev/library/ctypes.html#return-types
Passing pointers (or: passing parameters by reference)	https://docs.python.org/dev/library/ctypes.html#passing-pointers-or-passing-parameters-by-reference
Structures and unions	https://docs.python.org/dev/library/ctypes.html#structures-and-unions
Structure/union layout, alignment and byte order	https://docs.python.org/dev/library/ctypes.html#structure-union-layout-alignment-and-byte-order
Bit fields in structures and unions	https://docs.python.org/dev/library/ctypes.html#bit-fields-in-structures-and-unions
Arrays	https://docs.python.org/dev/library/ctypes.html#arrays
Pointers	https://docs.python.org/dev/library/ctypes.html#pointers
Thread safety without the GIL	https://docs.python.org/dev/library/ctypes.html#thread-safety-without-the-gil
Type conversions	https://docs.python.org/dev/library/ctypes.html#type-conversions
Incomplete Types	https://docs.python.org/dev/library/ctypes.html#incomplete-types
Callback functions	https://docs.python.org/dev/library/ctypes.html#callback-functions
Accessing values exported from dlls	https://docs.python.org/dev/library/ctypes.html#accessing-values-exported-from-dlls
Surprises	https://docs.python.org/dev/library/ctypes.html#surprises
Variable-sized data types	https://docs.python.org/dev/library/ctypes.html#variable-sized-data-types
ctypes reference	https://docs.python.org/dev/library/ctypes.html#ctypes-reference
Finding shared libraries	https://docs.python.org/dev/library/ctypes.html#finding-shared-libraries
Listing loaded shared libraries	https://docs.python.org/dev/library/ctypes.html#listing-loaded-shared-libraries
Loading shared libraries	https://docs.python.org/dev/library/ctypes.html#loading-shared-libraries
Foreign functions	https://docs.python.org/dev/library/ctypes.html#foreign-functions
Function prototypes	https://docs.python.org/dev/library/ctypes.html#function-prototypes
Utility functions	https://docs.python.org/dev/library/ctypes.html#utility-functions
Data types	https://docs.python.org/dev/library/ctypes.html#data-types
Fundamental data types	https://docs.python.org/dev/library/ctypes.html#ctypes-fundamental-data-types-2
Structured data types	https://docs.python.org/dev/library/ctypes.html#structured-data-types
Arrays and pointers	https://docs.python.org/dev/library/ctypes.html#arrays-and-pointers
Exceptions	https://docs.python.org/dev/library/ctypes.html#exceptions
errno — Standard errno system symbols	https://docs.python.org/dev/library/errno.html
Command-line interface libraries	https://docs.python.org/dev/library/cmdlinelibs.html
Report a bug	https://docs.python.org/dev/bugs.html
Show source	https://github.com/python/cpython/blob/main/Doc/library/ctypes.rst?plain=1
index	https://docs.python.org/dev/genindex.html
modules	https://docs.python.org/dev/py-modindex.html
next	https://docs.python.org/dev/library/cmdlinelibs.html
previous	https://docs.python.org/dev/library/errno.html
Python	https://www.python.org/
3.15.0a5 Documentation	https://docs.python.org/dev/index.html
The Python Standard Library	https://docs.python.org/dev/library/index.html
Generic Operating System Services	https://docs.python.org/dev/library/allos.html
ctypes — A foreign function library for Python	https://docs.python.org/dev/library/ctypes.html
¶	https://docs.python.org/dev/library/ctypes.html#module-ctypes
Lib/ctypes	https://github.com/python/cpython/tree/main/Lib/ctypes
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
optional module	https://docs.python.org/dev/glossary.html#term-optional-module
Requirements for optional modules	https://docs.python.org/dev/using/configure.html#optional-module-requirements
¶	https://docs.python.org/dev/library/ctypes.html#ctypes-tutorial
doctest	https://docs.python.org/dev/library/doctest.html#module-doctest
c_int	https://docs.python.org/dev/library/ctypes.html#ctypes.c_int
c_long	https://docs.python.org/dev/library/ctypes.html#ctypes.c_long
c_long	https://docs.python.org/dev/library/ctypes.html#ctypes.c_long
c_int	https://docs.python.org/dev/library/ctypes.html#ctypes.c_int
¶	https://docs.python.org/dev/library/ctypes.html#loading-dynamic-link-libraries
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
OSError	https://docs.python.org/dev/library/exceptions.html#OSError
WindowsError	https://docs.python.org/dev/library/exceptions.html#WindowsError
OSError	https://docs.python.org/dev/library/exceptions.html#OSError
LoadLibrary()	https://docs.python.org/dev/library/ctypes.html#ctypes.LibraryLoader.LoadLibrary
¶	https://docs.python.org/dev/library/ctypes.html#accessing-functions-from-loaded-dlls
getattr()	https://docs.python.org/dev/library/functions.html#getattr
¶	https://docs.python.org/dev/library/ctypes.html#calling-functions
ValueError	https://docs.python.org/dev/library/exceptions.html#ValueError
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
faulthandler	https://docs.python.org/dev/library/faulthandler.html#module-faulthandler
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
¶	https://docs.python.org/dev/library/ctypes.html#fundamental-data-types
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
c_bool	https://docs.python.org/dev/library/ctypes.html#ctypes.c_bool
c_char	https://docs.python.org/dev/library/ctypes.html#ctypes.c_char
c_wchar	https://docs.python.org/dev/library/ctypes.html#ctypes.c_wchar
c_byte	https://docs.python.org/dev/library/ctypes.html#ctypes.c_byte
c_ubyte	https://docs.python.org/dev/library/ctypes.html#ctypes.c_ubyte
c_short	https://docs.python.org/dev/library/ctypes.html#ctypes.c_short
c_ushort	https://docs.python.org/dev/library/ctypes.html#ctypes.c_ushort
c_int	https://docs.python.org/dev/library/ctypes.html#ctypes.c_int
c_int8	https://docs.python.org/dev/library/ctypes.html#ctypes.c_int8
c_int16	https://docs.python.org/dev/library/ctypes.html#ctypes.c_int16
c_int32	https://docs.python.org/dev/library/ctypes.html#ctypes.c_int32
c_int64	https://docs.python.org/dev/library/ctypes.html#ctypes.c_int64
c_uint	https://docs.python.org/dev/library/ctypes.html#ctypes.c_uint
c_uint8	https://docs.python.org/dev/library/ctypes.html#ctypes.c_uint8
c_uint16	https://docs.python.org/dev/library/ctypes.html#ctypes.c_uint16
c_uint32	https://docs.python.org/dev/library/ctypes.html#ctypes.c_uint32
c_uint64	https://docs.python.org/dev/library/ctypes.html#ctypes.c_uint64
c_long	https://docs.python.org/dev/library/ctypes.html#ctypes.c_long
c_ulong	https://docs.python.org/dev/library/ctypes.html#ctypes.c_ulong
c_longlong	https://docs.python.org/dev/library/ctypes.html#ctypes.c_longlong
c_ulonglong	https://docs.python.org/dev/library/ctypes.html#ctypes.c_ulonglong
c_size_t	https://docs.python.org/dev/library/ctypes.html#ctypes.c_size_t
c_ssize_t	https://docs.python.org/dev/library/ctypes.html#ctypes.c_ssize_t
Py_ssize_t	https://docs.python.org/dev/c-api/intro.html#c.Py_ssize_t
c_time_t	https://docs.python.org/dev/library/ctypes.html#ctypes.c_time_t
c_float	https://docs.python.org/dev/library/ctypes.html#ctypes.c_float
c_double	https://docs.python.org/dev/library/ctypes.html#ctypes.c_double
c_longdouble	https://docs.python.org/dev/library/ctypes.html#ctypes.c_longdouble
c_char_p	https://docs.python.org/dev/library/ctypes.html#ctypes.c_char_p
c_wchar_p	https://docs.python.org/dev/library/ctypes.html#ctypes.c_wchar_p
c_void_p	https://docs.python.org/dev/library/ctypes.html#ctypes.c_void_p
c_float_complex	https://docs.python.org/dev/library/ctypes.html#ctypes.c_float_complex
c_double_complex	https://docs.python.org/dev/library/ctypes.html#ctypes.c_double_complex
c_longdouble_complex	https://docs.python.org/dev/library/ctypes.html#ctypes.c_longdouble_complex
c_char_p	https://docs.python.org/dev/library/ctypes.html#ctypes.c_char_p
c_wchar_p	https://docs.python.org/dev/library/ctypes.html#ctypes.c_wchar_p
c_void_p	https://docs.python.org/dev/library/ctypes.html#ctypes.c_void_p
create_string_buffer()	https://docs.python.org/dev/library/ctypes.html#ctypes.create_string_buffer
create_string_buffer()	https://docs.python.org/dev/library/ctypes.html#ctypes.create_string_buffer
create_unicode_buffer()	https://docs.python.org/dev/library/ctypes.html#ctypes.create_unicode_buffer
¶	https://docs.python.org/dev/library/ctypes.html#calling-functions-continued
sys.stdout	https://docs.python.org/dev/library/sys.html#sys.stdout
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
¶	https://docs.python.org/dev/library/ctypes.html#calling-variadic-functions
argtypes	https://docs.python.org/dev/library/ctypes.html#ctypes._CFuncPtr.argtypes
argtypes	https://docs.python.org/dev/library/ctypes.html#ctypes._CFuncPtr.argtypes
¶	https://docs.python.org/dev/library/ctypes.html#calling-functions-with-your-own-custom-data-types
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
property	https://docs.python.org/dev/library/functions.html#property
¶	https://docs.python.org/dev/library/ctypes.html#specifying-the-required-argument-types-function-prototypes
argtypes	https://docs.python.org/dev/library/ctypes.html#ctypes._CFuncPtr.argtypes
argtypes	https://docs.python.org/dev/library/ctypes.html#ctypes._CFuncPtr.argtypes
from_param()	https://docs.python.org/dev/library/ctypes.html#ctypes._CData.from_param
argtypes	https://docs.python.org/dev/library/ctypes.html#ctypes._CFuncPtr.argtypes
from_param()	https://docs.python.org/dev/library/ctypes.html#ctypes._CData.from_param
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
¶	https://docs.python.org/dev/library/ctypes.html#return-types
restype	https://docs.python.org/dev/library/ctypes.html#ctypes._CFuncPtr.restype
argtypes	https://docs.python.org/dev/library/ctypes.html#ctypes._CFuncPtr.argtypes
ord("x")	https://docs.python.org/dev/library/functions.html#ord
argtypes	https://docs.python.org/dev/library/ctypes.html#ctypes._CFuncPtr.argtypes
restype	https://docs.python.org/dev/library/ctypes.html#ctypes._CFuncPtr.restype
GetLastError()	https://docs.python.org/dev/library/ctypes.html#ctypes.GetLastError
errcheck	https://docs.python.org/dev/library/ctypes.html#ctypes._CFuncPtr.errcheck
¶	https://docs.python.org/dev/library/ctypes.html#passing-pointers-or-passing-parameters-by-reference
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
byref()	https://docs.python.org/dev/library/ctypes.html#ctypes.byref
pointer()	https://docs.python.org/dev/library/ctypes.html#ctypes.pointer
pointer()	https://docs.python.org/dev/library/ctypes.html#ctypes.pointer
byref()	https://docs.python.org/dev/library/ctypes.html#ctypes.byref
¶	https://docs.python.org/dev/library/ctypes.html#structures-and-unions
Structure	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure
Union	https://docs.python.org/dev/library/ctypes.html#ctypes.Union
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
_fields_	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._fields_
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
c_int	https://docs.python.org/dev/library/ctypes.html#ctypes.c_int
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
descriptor	https://docs.python.org/dev/glossary.html#term-descriptor
CField	https://docs.python.org/dev/library/ctypes.html#ctypes.CField
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
¶	https://docs.python.org/dev/library/ctypes.html#structure-union-layout-alignment-and-byte-order
_layout_	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._layout_
_pack_	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._pack_
_align_	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._align_
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
BigEndianStructure	https://docs.python.org/dev/library/ctypes.html#ctypes.BigEndianStructure
LittleEndianStructure	https://docs.python.org/dev/library/ctypes.html#ctypes.LittleEndianStructure
BigEndianUnion	https://docs.python.org/dev/library/ctypes.html#ctypes.BigEndianUnion
LittleEndianUnion	https://docs.python.org/dev/library/ctypes.html#ctypes.LittleEndianUnion
¶	https://docs.python.org/dev/library/ctypes.html#bit-fields-in-structures-and-unions
_fields_	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._fields_
_layout_	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._layout_
¶	https://docs.python.org/dev/library/ctypes.html#arrays
¶	https://docs.python.org/dev/library/ctypes.html#pointers
pointer()	https://docs.python.org/dev/library/ctypes.html#ctypes.pointer
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
contents	https://docs.python.org/dev/library/ctypes.html#ctypes._Pointer.contents
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
c_int	https://docs.python.org/dev/library/ctypes.html#ctypes.c_int
pointer()	https://docs.python.org/dev/library/ctypes.html#ctypes.pointer
POINTER()	https://docs.python.org/dev/library/ctypes.html#ctypes.POINTER
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
¶	https://docs.python.org/dev/library/ctypes.html#thread-safety-without-the-gil
GIL	https://docs.python.org/dev/glossary.html#term-GIL
free threaded	https://docs.python.org/dev/glossary.html#term-free-threading
threading.Lock	https://docs.python.org/dev/library/threading.html#threading.Lock
¶	https://docs.python.org/dev/library/ctypes.html#type-conversions
argtypes	https://docs.python.org/dev/library/ctypes.html#ctypes._CFuncPtr.argtypes
argtypes	https://docs.python.org/dev/library/ctypes.html#ctypes._CFuncPtr.argtypes
byref()	https://docs.python.org/dev/library/ctypes.html#ctypes.byref
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
cast()	https://docs.python.org/dev/library/ctypes.html#ctypes.cast
c_int	https://docs.python.org/dev/library/ctypes.html#ctypes.c_int
cast()	https://docs.python.org/dev/library/ctypes.html#ctypes.cast
cast()	https://docs.python.org/dev/library/ctypes.html#ctypes.cast
cast()	https://docs.python.org/dev/library/ctypes.html#ctypes.cast
cast()	https://docs.python.org/dev/library/ctypes.html#ctypes.cast
¶	https://docs.python.org/dev/library/ctypes.html#incomplete-types
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
_fields_	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._fields_
¶	https://docs.python.org/dev/library/ctypes.html#callback-functions
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
CFUNCTYPE()	https://docs.python.org/dev/library/ctypes.html#ctypes.CFUNCTYPE
WINFUNCTYPE()	https://docs.python.org/dev/library/ctypes.html#ctypes.WINFUNCTYPE
CFUNCTYPE()	https://docs.python.org/dev/library/ctypes.html#ctypes.CFUNCTYPE
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
threading.local	https://docs.python.org/dev/library/threading.html#threading.local
¶	https://docs.python.org/dev/library/ctypes.html#accessing-values-exported-from-dlls
Py_Version	https://docs.python.org/dev/c-api/apiabiversion.html#c.Py_Version
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
in_dll()	https://docs.python.org/dev/library/ctypes.html#ctypes._CData.in_dll
PyImport_FrozenModules	https://docs.python.org/dev/c-api/import.html#c.PyImport_FrozenModules
_frozen	https://docs.python.org/dev/c-api/import.html#c._frozen
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
_frozen	https://docs.python.org/dev/c-api/import.html#c._frozen
¶	https://docs.python.org/dev/library/ctypes.html#surprises
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
c_char_p	https://docs.python.org/dev/library/ctypes.html#ctypes.c_char_p
descriptor	https://docs.python.org/dev/glossary.html#term-descriptor
¶	https://docs.python.org/dev/library/ctypes.html#variable-sized-data-types
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
resize()	https://docs.python.org/dev/library/ctypes.html#ctypes.resize
ValueError	https://docs.python.org/dev/library/exceptions.html#ValueError
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
¶	https://docs.python.org/dev/library/ctypes.html#ctypes-reference
¶	https://docs.python.org/dev/library/ctypes.html#finding-shared-libraries
find_library()	https://docs.python.org/dev/library/ctypes.html#ctypes.util.find_library
find_library()	https://docs.python.org/dev/library/ctypes.html#ctypes.util.find_library
find_library()	https://docs.python.org/dev/library/ctypes.html#ctypes.util.find_library
find_library()	https://docs.python.org/dev/library/ctypes.html#ctypes.util.find_library
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
find_library()	https://docs.python.org/dev/library/ctypes.html#ctypes.util.find_library
¶	https://docs.python.org/dev/library/ctypes.html#listing-loaded-shared-libraries
dllist()	https://docs.python.org/dev/library/ctypes.html#ctypes.util.dllist
¶	https://docs.python.org/dev/library/ctypes.html#loading-shared-libraries
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.CDLL
CDLL	https://docs.python.org/dev/library/ctypes.html#ctypes.CDLL
OSError	https://docs.python.org/dev/library/exceptions.html#OSError
path-like object	https://docs.python.org/dev/glossary.html#term-path-like-object
Microsoft DUMPBIN tool	https://docs.microsoft.com/cpp/build/reference/dependents
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.OleDLL
HRESULT	https://docs.python.org/dev/library/ctypes.html#ctypes.HRESULT
HRESULT	https://docs.python.org/dev/library/ctypes.html#ctypes.HRESULT
OSError	https://docs.python.org/dev/library/exceptions.html#OSError
Availability	https://docs.python.org/dev/library/intro.html#availability
WindowsError	https://docs.python.org/dev/library/exceptions.html#WindowsError
OSError	https://docs.python.org/dev/library/exceptions.html#OSError
path-like object	https://docs.python.org/dev/glossary.html#term-path-like-object
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.WinDLL
Availability	https://docs.python.org/dev/library/intro.html#availability
path-like object	https://docs.python.org/dev/glossary.html#term-path-like-object
global interpreter lock	https://docs.python.org/dev/glossary.html#term-global-interpreter-lock
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.PyDLL
CDLL	https://docs.python.org/dev/library/ctypes.html#ctypes.CDLL
path-like object	https://docs.python.org/dev/glossary.html#term-path-like-object
dlopen(3)	https://manpages.debian.org/dlopen(3)
errno	https://docs.python.org/dev/library/errno.html#module-errno
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
errno	https://docs.python.org/dev/library/errno.html#module-errno
errno	https://docs.python.org/dev/library/errno.html#module-errno
ctypes.get_errno()	https://docs.python.org/dev/library/ctypes.html#ctypes.get_errno
ctypes.set_errno()	https://docs.python.org/dev/library/ctypes.html#ctypes.set_errno
GetLastError()	https://docs.python.org/dev/library/ctypes.html#ctypes.GetLastError
ctypes.get_last_error()	https://docs.python.org/dev/library/ctypes.html#ctypes.get_last_error
ctypes.set_last_error()	https://docs.python.org/dev/library/ctypes.html#ctypes.set_last_error
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.PyDLL._handle
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.PyDLL._name
LibraryLoader	https://docs.python.org/dev/library/ctypes.html#ctypes.LibraryLoader
LoadLibrary()	https://docs.python.org/dev/library/ctypes.html#ctypes.LibraryLoader.LoadLibrary
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.LibraryLoader
CDLL	https://docs.python.org/dev/library/ctypes.html#ctypes.CDLL
PyDLL	https://docs.python.org/dev/library/ctypes.html#ctypes.PyDLL
WinDLL	https://docs.python.org/dev/library/ctypes.html#ctypes.WinDLL
OleDLL	https://docs.python.org/dev/library/ctypes.html#ctypes.OleDLL
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.LibraryLoader.LoadLibrary
CDLL	https://docs.python.org/dev/library/ctypes.html#ctypes.CDLL
WinDLL	https://docs.python.org/dev/library/ctypes.html#ctypes.WinDLL
Availability	https://docs.python.org/dev/library/intro.html#availability
OleDLL	https://docs.python.org/dev/library/ctypes.html#ctypes.OleDLL
Availability	https://docs.python.org/dev/library/intro.html#availability
PyDLL	https://docs.python.org/dev/library/ctypes.html#ctypes.PyDLL
PyDLL	https://docs.python.org/dev/library/ctypes.html#ctypes.PyDLL
auditing event	https://docs.python.org/dev/library/sys.html#auditing
¶	https://docs.python.org/dev/library/ctypes.html#foreign-functions
_CFuncPtr	https://docs.python.org/dev/library/ctypes.html#ctypes._CFuncPtr
¶	https://docs.python.org/dev/library/ctypes.html#ctypes._CFuncPtr
¶	https://docs.python.org/dev/library/ctypes.html#ctypes._CFuncPtr.restype
errcheck	https://docs.python.org/dev/library/ctypes.html#ctypes._CFuncPtr.errcheck
¶	https://docs.python.org/dev/library/ctypes.html#ctypes._CFuncPtr.argtypes
from_param()	https://docs.python.org/dev/library/ctypes.html#ctypes._CData.from_param
argtypes	https://docs.python.org/dev/library/ctypes.html#ctypes._CFuncPtr.argtypes
c_char_p	https://docs.python.org/dev/library/ctypes.html#ctypes.c_char_p
argtypes	https://docs.python.org/dev/library/ctypes.html#ctypes._CFuncPtr.argtypes
from_param()	https://docs.python.org/dev/library/ctypes.html#ctypes._CData.from_param
¶	https://docs.python.org/dev/library/ctypes.html#ctypes._CFuncPtr.errcheck
¶	https://docs.python.org/dev/library/ctypes.html#function-prototypes
Callback functions	https://docs.python.org/dev/library/ctypes.html#ctypes-callback-functions
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.CFUNCTYPE
errno	https://docs.python.org/dev/library/errno.html#module-errno
errno	https://docs.python.org/dev/library/errno.html#module-errno
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.WINFUNCTYPE
Availability	https://docs.python.org/dev/library/intro.html#availability
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.PYFUNCTYPE
OSError	https://docs.python.org/dev/library/exceptions.html#OSError
COMError	https://docs.python.org/dev/library/ctypes.html#ctypes.COMError
Availability	https://docs.python.org/dev/library/intro.html#availability
argtypes	https://docs.python.org/dev/library/ctypes.html#ctypes._CFuncPtr.argtypes
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
errcheck	https://docs.python.org/dev/library/ctypes.html#ctypes._CFuncPtr.errcheck
errcheck	https://docs.python.org/dev/library/ctypes.html#ctypes._CFuncPtr.errcheck
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
¶	https://docs.python.org/dev/library/ctypes.html#utility-functions
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.addressof
auditing event	https://docs.python.org/dev/library/sys.html#auditing
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.alignment
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.byref
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.CopyComPointer
Availability	https://docs.python.org/dev/library/intro.html#availability
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.cast
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.create_string_buffer
c_char	https://docs.python.org/dev/library/ctypes.html#ctypes.c_char
int	https://docs.python.org/dev/library/functions.html#int
bytes	https://docs.python.org/dev/library/stdtypes.html#bytes
auditing event	https://docs.python.org/dev/library/sys.html#auditing
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.create_unicode_buffer
c_wchar	https://docs.python.org/dev/library/ctypes.html#ctypes.c_wchar
create_string_buffer()	https://docs.python.org/dev/library/ctypes.html#ctypes.create_string_buffer
c_wchar	https://docs.python.org/dev/library/ctypes.html#ctypes.c_wchar
auditing event	https://docs.python.org/dev/library/sys.html#auditing
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.DllCanUnloadNow
Availability	https://docs.python.org/dev/library/intro.html#availability
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.DllGetClassObject
Availability	https://docs.python.org/dev/library/intro.html#availability
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.util.find_library
Finding shared libraries	https://docs.python.org/dev/library/ctypes.html#ctypes-finding-shared-libraries
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.util.find_msvcrt
Availability	https://docs.python.org/dev/library/intro.html#availability
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.util.dllist
OSError	https://docs.python.org/dev/library/exceptions.html#OSError
Availability	https://docs.python.org/dev/library/intro.html#availability
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.FormatError
GetLastError()	https://docs.python.org/dev/library/ctypes.html#ctypes.GetLastError
Availability	https://docs.python.org/dev/library/intro.html#availability
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.GetLastError
Availability	https://docs.python.org/dev/library/intro.html#availability
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.get_errno
errno	https://docs.python.org/dev/library/errno.html#module-errno
auditing event	https://docs.python.org/dev/library/sys.html#auditing
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.get_last_error
Availability	https://docs.python.org/dev/library/intro.html#availability
auditing event	https://docs.python.org/dev/library/sys.html#auditing
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.memmove
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.memset
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.POINTER
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.pointer
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.resize
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.set_errno
errno	https://docs.python.org/dev/library/errno.html#module-errno
auditing event	https://docs.python.org/dev/library/sys.html#auditing
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.set_last_error
Availability	https://docs.python.org/dev/library/intro.html#availability
auditing event	https://docs.python.org/dev/library/sys.html#auditing
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.sizeof
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.string_at
auditing event	https://docs.python.org/dev/library/sys.html#auditing
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.WinError
OSError	https://docs.python.org/dev/library/exceptions.html#OSError
GetLastError()	https://docs.python.org/dev/library/ctypes.html#ctypes.GetLastError
FormatError()	https://docs.python.org/dev/library/ctypes.html#ctypes.FormatError
Availability	https://docs.python.org/dev/library/intro.html#availability
WindowsError	https://docs.python.org/dev/library/exceptions.html#WindowsError
OSError	https://docs.python.org/dev/library/exceptions.html#OSError
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.wstring_at
auditing event	https://docs.python.org/dev/library/sys.html#auditing
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.memoryview_at
memoryview	https://docs.python.org/dev/library/stdtypes.html#memoryview
string_at()	https://docs.python.org/dev/library/ctypes.html#ctypes.string_at
from_address()	https://docs.python.org/dev/library/ctypes.html#ctypes._CData.from_address
ctypes.POINTER	https://docs.python.org/dev/library/ctypes.html#ctypes.POINTER
byref()	https://docs.python.org/dev/library/ctypes.html#ctypes.byref
auditing event	https://docs.python.org/dev/library/sys.html#auditing
¶	https://docs.python.org/dev/library/ctypes.html#data-types
¶	https://docs.python.org/dev/library/ctypes.html#ctypes._CData
addressof()	https://docs.python.org/dev/library/ctypes.html#ctypes.addressof
_objects	https://docs.python.org/dev/library/ctypes.html#ctypes._CData._objects
metaclass	https://docs.python.org/dev/glossary.html#term-metaclass
¶	https://docs.python.org/dev/library/ctypes.html#ctypes._CData.from_buffer
ValueError	https://docs.python.org/dev/library/exceptions.html#ValueError
auditing event	https://docs.python.org/dev/library/sys.html#auditing
¶	https://docs.python.org/dev/library/ctypes.html#ctypes._CData.from_buffer_copy
ValueError	https://docs.python.org/dev/library/exceptions.html#ValueError
auditing event	https://docs.python.org/dev/library/sys.html#auditing
¶	https://docs.python.org/dev/library/ctypes.html#ctypes._CData.from_address
auditing event	https://docs.python.org/dev/library/sys.html#auditing
¶	https://docs.python.org/dev/library/ctypes.html#ctypes._CData.from_param
argtypes	https://docs.python.org/dev/library/ctypes.html#ctypes._CFuncPtr.argtypes
¶	https://docs.python.org/dev/library/ctypes.html#ctypes._CData.in_dll
¶	https://docs.python.org/dev/library/ctypes.html#ctypes._CData.__pointer_type__
POINTER()	https://docs.python.org/dev/library/ctypes.html#ctypes.POINTER
¶	https://docs.python.org/dev/library/ctypes.html#ctypes._CData._b_base_
_b_base_	https://docs.python.org/dev/library/ctypes.html#ctypes._CData._b_base_
¶	https://docs.python.org/dev/library/ctypes.html#ctypes._CData._b_needsfree_
¶	https://docs.python.org/dev/library/ctypes.html#ctypes._CData._objects
¶	https://docs.python.org/dev/library/ctypes.html#ctypes-fundamental-data-types-2
¶	https://docs.python.org/dev/library/ctypes.html#ctypes._SimpleCData
_SimpleCData	https://docs.python.org/dev/library/ctypes.html#ctypes._SimpleCData
_CData	https://docs.python.org/dev/library/ctypes.html#ctypes._CData
¶	https://docs.python.org/dev/library/ctypes.html#ctypes._SimpleCData.value
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
restype	https://docs.python.org/dev/library/ctypes.html#ctypes._CFuncPtr.restype
c_char_p	https://docs.python.org/dev/library/ctypes.html#ctypes.c_char_p
c_char_p	https://docs.python.org/dev/library/ctypes.html#ctypes.c_char_p
c_void_p	https://docs.python.org/dev/library/ctypes.html#ctypes.c_void_p
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_byte
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_char
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_char_p
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_double
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_longdouble
c_double	https://docs.python.org/dev/library/ctypes.html#ctypes.c_double
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_float
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_double_complex
complex	https://docs.python.org/dev/library/functions.html#complex
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_float_complex
complex	https://docs.python.org/dev/library/functions.html#complex
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_longdouble_complex
complex	https://docs.python.org/dev/library/functions.html#complex
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_int
c_long	https://docs.python.org/dev/library/ctypes.html#ctypes.c_long
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_int8
c_byte	https://docs.python.org/dev/library/ctypes.html#ctypes.c_byte
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_int16
c_short	https://docs.python.org/dev/library/ctypes.html#ctypes.c_short
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_int32
c_int	https://docs.python.org/dev/library/ctypes.html#ctypes.c_int
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_int64
c_longlong	https://docs.python.org/dev/library/ctypes.html#ctypes.c_longlong
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_long
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_longlong
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_short
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_size_t
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_ssize_t
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_time_t
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_ubyte
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_uint
c_ulong	https://docs.python.org/dev/library/ctypes.html#ctypes.c_ulong
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_uint8
c_ubyte	https://docs.python.org/dev/library/ctypes.html#ctypes.c_ubyte
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_uint16
c_ushort	https://docs.python.org/dev/library/ctypes.html#ctypes.c_ushort
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_uint32
c_uint	https://docs.python.org/dev/library/ctypes.html#ctypes.c_uint
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_uint64
c_ulonglong	https://docs.python.org/dev/library/ctypes.html#ctypes.c_ulonglong
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_ulong
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_ulonglong
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_ushort
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_void_p
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_wchar
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_wchar_p
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.c_bool
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.HRESULT
Availability	https://docs.python.org/dev/library/intro.html#availability
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.py_object
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
generic type	https://docs.python.org/dev/glossary.html#term-generic-type
¶	https://docs.python.org/dev/library/ctypes.html#structured-data-types
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.Union
Structure	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.BigEndianUnion
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.LittleEndianUnion
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.BigEndianStructure
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.LittleEndianStructure
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure
_fields_	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._fields_
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
descriptor	https://docs.python.org/dev/glossary.html#term-descriptor
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._fields_
c_int	https://docs.python.org/dev/library/ctypes.html#ctypes.c_int
_fields_	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._fields_
AttributeError	https://docs.python.org/dev/library/exceptions.html#AttributeError
sizeof()	https://docs.python.org/dev/library/ctypes.html#ctypes.sizeof
AttributeError	https://docs.python.org/dev/library/exceptions.html#AttributeError
_fields_	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._fields_
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._pack_
_layout_	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._layout_
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
_fields_	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._fields_
_layout_	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._layout_
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._align_
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
_fields_	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._fields_
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._layout_
_pack_	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._pack_
_pack_	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._pack_
_pack_	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._pack_
_fields_	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._fields_
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._anonymous_
_anonymous_	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._anonymous_
_fields_	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._fields_
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
_fields_	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._fields_
_fields_	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._fields_
_fields_	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._fields_
_fields_	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._fields_
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.CField
Structure	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure
Union	https://docs.python.org/dev/library/ctypes.html#ctypes.Union
_fields_	https://docs.python.org/dev/library/ctypes.html#ctypes.Structure._fields_
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.CField.name
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.CField.type
ctypes class	https://docs.python.org/dev/library/ctypes.html#ctypes-data-types
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.CField.offset
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.CField.byte_offset
bit_offset	https://docs.python.org/dev/library/ctypes.html#ctypes.CField.bit_offset
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.CField.byte_size
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.CField.size
byte_size	https://docs.python.org/dev/library/ctypes.html#ctypes.CField.byte_size
bit_size	https://docs.python.org/dev/library/ctypes.html#ctypes.CField.bit_size
bit_offset	https://docs.python.org/dev/library/ctypes.html#ctypes.CField.bit_offset
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.CField.is_bitfield
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.CField.bit_offset
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.CField.bit_size
byte_size	https://docs.python.org/dev/library/ctypes.html#ctypes.CField.byte_size
byte_offset	https://docs.python.org/dev/library/ctypes.html#ctypes.CField.byte_offset
shift left	https://docs.python.org/dev/reference/expressions.html#shifting
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.CField.is_anonymous
¶	https://docs.python.org/dev/library/ctypes.html#arrays-and-pointers
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.Array
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
_length_	https://docs.python.org/dev/library/ctypes.html#ctypes.Array._length_
_type_	https://docs.python.org/dev/library/ctypes.html#ctypes.Array._type_
Array	https://docs.python.org/dev/library/ctypes.html#ctypes.Array
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.Array._length_
IndexError	https://docs.python.org/dev/library/exceptions.html#IndexError
len()	https://docs.python.org/dev/library/functions.html#len
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.Array._type_
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.ARRAY
ctypes	https://docs.python.org/dev/library/ctypes.html#module-ctypes
soft deprecated	https://docs.python.org/dev/glossary.html#term-soft-deprecated
¶	https://docs.python.org/dev/library/ctypes.html#ctypes._Pointer
POINTER()	https://docs.python.org/dev/library/ctypes.html#ctypes.POINTER
pointer()	https://docs.python.org/dev/library/ctypes.html#ctypes.pointer
len()	https://docs.python.org/dev/library/functions.html#len
TypeError	https://docs.python.org/dev/library/exceptions.html#TypeError
¶	https://docs.python.org/dev/library/ctypes.html#ctypes._Pointer._type_
¶	https://docs.python.org/dev/library/ctypes.html#ctypes._Pointer.contents
¶	https://docs.python.org/dev/library/ctypes.html#exceptions
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.ArgumentError
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.COMError
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.COMError.hresult
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.COMError.text
¶	https://docs.python.org/dev/library/ctypes.html#ctypes.COMError.details
Availability	https://docs.python.org/dev/library/intro.html#availability
Table of Contents	https://docs.python.org/dev/contents.html
ctypes — A foreign function library for Python	https://docs.python.org/dev/library/ctypes.html
ctypes tutorial	https://docs.python.org/dev/library/ctypes.html#ctypes-tutorial
Loading dynamic link libraries	https://docs.python.org/dev/library/ctypes.html#loading-dynamic-link-libraries
Accessing functions from loaded dlls	https://docs.python.org/dev/library/ctypes.html#accessing-functions-from-loaded-dlls
Calling functions	https://docs.python.org/dev/library/ctypes.html#calling-functions
Fundamental data types	https://docs.python.org/dev/library/ctypes.html#fundamental-data-types
Calling functions, continued	https://docs.python.org/dev/library/ctypes.html#calling-functions-continued
Calling variadic functions	https://docs.python.org/dev/library/ctypes.html#calling-variadic-functions
Calling functions with your own custom data types	https://docs.python.org/dev/library/ctypes.html#calling-functions-with-your-own-custom-data-types
Specifying the required argument types (function prototypes)	https://docs.python.org/dev/library/ctypes.html#specifying-the-required-argument-types-function-prototypes
Return types	https://docs.python.org/dev/library/ctypes.html#return-types
Passing pointers (or: passing parameters by reference)	https://docs.python.org/dev/library/ctypes.html#passing-pointers-or-passing-parameters-by-reference
Structures and unions	https://docs.python.org/dev/library/ctypes.html#structures-and-unions
Structure/union layout, alignment and byte order	https://docs.python.org/dev/library/ctypes.html#structure-union-layout-alignment-and-byte-order
Bit fields in structures and unions	https://docs.python.org/dev/library/ctypes.html#bit-fields-in-structures-and-unions
Arrays	https://docs.python.org/dev/library/ctypes.html#arrays
Pointers	https://docs.python.org/dev/library/ctypes.html#pointers
Thread safety without the GIL	https://docs.python.org/dev/library/ctypes.html#thread-safety-without-the-gil
Type conversions	https://docs.python.org/dev/library/ctypes.html#type-conversions
Incomplete Types	https://docs.python.org/dev/library/ctypes.html#incomplete-types
Callback functions	https://docs.python.org/dev/library/ctypes.html#callback-functions
Accessing values exported from dlls	https://docs.python.org/dev/library/ctypes.html#accessing-values-exported-from-dlls
Surprises	https://docs.python.org/dev/library/ctypes.html#surprises
Variable-sized data types	https://docs.python.org/dev/library/ctypes.html#variable-sized-data-types
ctypes reference	https://docs.python.org/dev/library/ctypes.html#ctypes-reference
Finding shared libraries	https://docs.python.org/dev/library/ctypes.html#finding-shared-libraries
Listing loaded shared libraries	https://docs.python.org/dev/library/ctypes.html#listing-loaded-shared-libraries
Loading shared libraries	https://docs.python.org/dev/library/ctypes.html#loading-shared-libraries
Foreign functions	https://docs.python.org/dev/library/ctypes.html#foreign-functions
Function prototypes	https://docs.python.org/dev/library/ctypes.html#function-prototypes
Utility functions	https://docs.python.org/dev/library/ctypes.html#utility-functions
Data types	https://docs.python.org/dev/library/ctypes.html#data-types
Fundamental data types	https://docs.python.org/dev/library/ctypes.html#ctypes-fundamental-data-types-2
Structured data types	https://docs.python.org/dev/library/ctypes.html#structured-data-types
Arrays and pointers	https://docs.python.org/dev/library/ctypes.html#arrays-and-pointers
Exceptions	https://docs.python.org/dev/library/ctypes.html#exceptions
errno — Standard errno system symbols	https://docs.python.org/dev/library/errno.html
Command-line interface libraries	https://docs.python.org/dev/library/cmdlinelibs.html
Report a bug	https://docs.python.org/dev/bugs.html
Show source	https://github.com/python/cpython/blob/main/Doc/library/ctypes.rst?plain=1
index	https://docs.python.org/dev/genindex.html
modules	https://docs.python.org/dev/py-modindex.html
next	https://docs.python.org/dev/library/cmdlinelibs.html
previous	https://docs.python.org/dev/library/errno.html
Python	https://www.python.org/
3.15.0a5 Documentation	https://docs.python.org/dev/index.html
The Python Standard Library	https://docs.python.org/dev/library/index.html
Generic Operating System Services	https://docs.python.org/dev/library/allos.html
ctypes — A foreign function library for Python	https://docs.python.org/dev/library/ctypes.html
Copyright	https://docs.python.org/dev/copyright.html
History and License	https://docs.python.org/license.html
Please donate.	https://www.python.org/psf/donations/
Found a bug	https://docs.python.org/bugs.html
Sphinx	https://www.sphinx-doc.org/

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