Package ctypes

source code

create and manipulate C data types in Python

Version: 1.0.2

Classes

CDLL
An instance of this class represents a loaded dll/shared library, exporting functions using the standard C calling convention (named 'cdecl' on Windows).

HRESULT

LibraryLoader

OleDLL
This class represents a dll exporting functions using the Windows stdcall calling convention, and returning HRESULT.

PyDLL
This class represents the Python library itself.

WinDLL
This class represents a dll exporting functions using the Windows stdcall calling convention.

c_byte

c_char

c_char_p

c_double

c_float

c_int

c_int16

c_int32

c_int64

c_int8

c_long

c_longlong

c_short

c_size_t

c_ubyte

c_uint

c_uint16

c_uint32

c_uint64

c_uint8

c_ulong

c_ulonglong

c_ushort

c_void_p

c_voidp

c_wchar

c_wchar_p

py_object

Functions

[hide private]

ARRAY(typ, len)

source code

CFUNCTYPE(restype, *argtypes)
restype: the result type argtypes: a sequence specifying the argument types

source code

DllCanUnloadNow()

source code

DllGetClassObject(rclsid, riid, ppv)

source code

POINTER(cls)

source code

PYFUNCTYPE(restype, *argtypes)

source code

SetPointerType(pointer, cls)

source code

WINFUNCTYPE(restype, *argtypes)

source code

WinError(code=None, descr=None)

source code

_check_size(typ, typecode=None)

source code

c_buffer(init, size=None)

source code

cast(obj, typ)

source code

create_string_buffer(aString)
create_string_buffer(anInteger) -> character array create_string_buffer(aString, anInteger) -> character array

source code

create_unicode_buffer(aString)
create_unicode_buffer(anInteger) -> character array create_unicode_buffer(aString, anInteger) -> character array

source code

pointer(inst)

source code

string_at(addr, size=...)
Return the string at addr.

source code

wstring_at(addr, size=...)
Return the string at addr.

source code

Variables

[hide private]

DEFAULT_MODE = 0

GetLastError = <_FuncPtr object at 0x00FBEF30>

RTLD_GLOBAL = 0

RTLD_LOCAL = 0

_FUNCFLAG_CDECL = 1

_FUNCFLAG_PYTHONAPI = 4

_FUNCFLAG_STDCALL = 0

_c_functype_cache = {(None, ()): <class 'ctypes.CFunctionType'...

_cast = <CFunctionType object at 0x0109E120>

_cast_addr = 488266112

_ctypes_version = '1.0.2'

_memmove_addr = 2083793294

_memset_addr = 488291326

_pointer_type_cache = {None: <class 'ctypes.c_void_p'>, <class...

_string_at = <CFunctionType object at 0x0109E198>

_string_at_addr = 488265824

_win_functype_cache = {}

_wstring_at = <CFunctionType object at 0x0109E210>

_wstring_at_addr = 488268064

cdll = <ctypes.LibraryLoader object at 0x01095E50>

memmove = <CFunctionType object at 0x0109E030>

memset = <CFunctionType object at 0x0109E0A8>

oledll = <ctypes.LibraryLoader object at 0x01095ED0>

pydll = <ctypes.LibraryLoader object at 0x01095E70>

pythonapi = <PyDLL 'python dll', handle 1e000000 at 1095e90>

windll = <ctypes.LibraryLoader object at 0x01095EB0>

Function Details

[hide private]

CFUNCTYPE(restype, *argtypes)

source code

restype: the result type argtypes: a sequence specifying the argument types

The function prototype can be called in different ways to create a callable object:

prototype(integer address) -> foreign function prototype(callable) -> create and return a C callable function from callable prototype(integer index, method name[, paramflags]) -> foreign function calling a COM method prototype((ordinal number, dll object)[, paramflags]) -> foreign function exported by ordinal prototype((function name, dll object)[, paramflags]) -> foreign function exported by name

Returns:

function prototype

create_string_buffer(aString)

source code

create_string_buffer(anInteger) -> character array create_string_buffer(aString, anInteger) -> character array

Returns:

character array

create_unicode_buffer(aString)

source code

create_unicode_buffer(anInteger) -> character array create_unicode_buffer(aString, anInteger) -> character array

Returns:

character array

string_at(addr, size=...)

source code

Return the string at addr.

Returns:

string

wstring_at(addr, size=...)

source code

Return the string at addr.

Returns:

string

Variables Details

[hide private]

_c_functype_cache

Value:

{(None, ()): <class 'ctypes.CFunctionType'>,
 (None,
  (<pycv.interfaces.opencv.CVtypes.ByRefArg object at 0x02695830>)): <
class 'ctypes.CFunctionType'>,
 (None,
  (<pycv.interfaces.opencv.CVtypes.ByRefArg object at 0x026958D0>)): <
class 'ctypes.CFunctionType'>,
 (None, (<pycv.interfaces.opencv.CVtypes.ByRefArg object at 0x02695B30
...

_pointer_type_cache

Value:

{None: <class 'ctypes.c_void_p'>,
 <class 'ctypes.c_ubyte'>: <class 'ctypes.LP_c_ubyte'>,
 <class 'ctypes.c_byte'>: <class 'ctypes.LP_c_byte'>,
 <class 'ctypes.c_char'>: <class 'ctypes.LP_c_char'>,
 <class 'ctypes.c_char_p'>: <class 'ctypes.LP_c_char_p'>,
 <class 'ctypes.c_void_p'>: <class 'ctypes.LP_c_void_p'>,
 <class 'ctypes.c_wchar'>: <class 'ctypes.LP_c_wchar'>,
 <class 'ctypes.c_short'>: <class 'ctypes.LP_c_short'>,
...