def CoCreateInstanceC2R(self, store, reg, clsid, iid):
# Ugly code to find DLL in C2R version of COM object and get a COM
# object despite the fact that COM doesn't handle C2R
try:
# Get DLL to load from 2R register
aReg = winreg.ConnectRegistry(None, store)
aKey = winreg.OpenKey(aReg, reg, 0,
winreg.KEY_READ | winreg.KEY_WOW64_64KEY)
dummy_n, IconvDLL, dummy_t = winreg.EnumValue(aKey, 0)
winreg.CloseKey(aKey)
winreg.CloseKey(aReg)
# Create OLE object from DLL
IconvOLE = ctypes.OleDLL(IconvDLL)
# Get COM Instance from OLE
clsid_class = uuid.UUID(str(clsid)).bytes_le
iclassfactory = uuid.UUID(str(
pythoncom.IID_IClassFactory)).bytes_le
com_classfactory = ctypes.c_long(0)
IconvOLE.DllGetClassObject(clsid_class, iclassfactory,
ctypes.byref(com_classfactory))
MyFactory = pythoncom.ObjectFromAddress(
com_classfactory.value, pythoncom.IID_IClassFactory)
return MyFactory.CreateInstance(None, str(iid))
except:
return None
def _TearDown(self):
try:
cf_dll = ctypes.OleDLL(self._chrome_frame_dll)
cf_dll.DllUnregisterServer()
except Exception as e:
# Squash any errors here.
_LOGGER.info('Error unregistering Chrome Frame dll: %s', e)
def fix_scaling():
import sys
if sys.platform == 'win32':
try:
import ctypes
PROCESS_SYSTEM_DPI_AWARE = 1
ctypes.OleDLL('shcore').SetProcessDpiAwareness(
PROCESS_SYSTEM_DPI_AWARE)
except (ImportError, AttributeError, OSError):
pass
def enable_hidpi_support():
# Try to tell Windows we're HiDPI aware, to disable scaling
if sys.platform == 'win32':
try:
import ctypes
PROCESS_SYSTEM_DPI_AWARE = 1
ctypes.OleDLL('shcore').SetProcessDpiAwareness(
PROCESS_SYSTEM_DPI_AWARE)
except (AttributeError, OSError):
pass
def _SetUp(self):
if self._ie_path:
# Register the CF dll.
try:
cf_dll = ctypes.OleDLL(self._chrome_frame_dll)
cf_dll.DllRegisterServer()
except Exception:
raise RunnerError('Could not load Chrome Frame dll at [%s].' %
self._chrome_frame_dll)
else:
raise RunnerError('Could not locate path to iexplore.exe.')
def set_dpi_aware():
# https://stackoverflow.com/questions/36134072/setprocessdpiaware-seems-not-to-work-under-windows-10
# https://bugs.python.org/issue33656
# https://msdn.microsoft.com/en-us/library/windows/desktop/dn280512(v=vs.85).aspx
# https://github.com/python/cpython/blob/master/Lib/idlelib/pyshell.py
if sys.platform == "win32":
try:
import ctypes
PROCESS_SYSTEM_DPI_AWARE = 1
ctypes.OleDLL("shcore").SetProcessDpiAwareness(PROCESS_SYSTEM_DPI_AWARE)
except (ImportError, AttributeError, OSError):
pass
def initModules():
global g_h2langDll
global g_user32Dll
global g_BaseAddress
global g_TagGroupListAddress
# Get the idb folder which will contains the h2alang.dll file.
modulePath = idautils.GetIdbDir() + "h2alang.dll"
# Check if the h2alang.dll module exists.
if os.path.isfile(modulePath) is False:
# The file does not exist, display a message to the user.
idaapi.warning("Could not find \"%s\"!" % modulePath)
return False
try:
# Load the h2alang.dll module.
g_h2langDll = ctypes.cdll.LoadLibrary(modulePath)
# Try to load the user32.dll module.
g_user32Dll = ctypes.OleDLL("user32.dll")
except Exception:
# Failed to load the h2alang.dll file.
idaapi.warning("Failed to load \"%s\"!" % modulePath)
return False
# Check the input file name to determine which hek tool we have loaded.
moduleName = idc.GetInputFile()
if moduleName == "H2Guerilla.exe":
# Load values for h2 guerilla executable.
g_BaseAddress = 0x400000
g_TagGroupListAddress = 0x00901B90
elif moduleName == "H2Sapien.exe":
# Load values for h2 sapien executable.
idaapi.warning("H2Sapien currently not supported!")
return False
elif moduleName == "H2Tool.exe":
# Load values for h2 tool executable.
idaapi.warning("H2Tool currently not supported!")
return False
else:
# Unknown module.
idaapi.warning("Unknown HEK module loaded!")
return False
# Initialized successfully.
return True
def register_server(source_dir):
""" Register testing server appropriate for the python architecture.
``source_dir`` gives the absolute path to the comtype source in which the
32- and 64-bit testing server, "AvmcIfc.dll" is defined.
If the server is already registered, do nothing.
"""
# The 64-bitness of the python interpreter determines the testing dll to
# use.
dll_name = "AvmcIfc_x64.dll" if sys.maxsize > 2**32 else "AvmcIfc.dll"
dll_path = os.path.join(source_dir, "Debug", dll_name)
# Register our ATL COM tester dll
dll = ctypes.OleDLL(dll_path)
dll.DllRegisterServer()
return
def __init__(self, on_resize=None):
super().__init__()
if on_resize: self.on_resize = on_resize
self.user32 = ctypes.WinDLL('user32', use_last_error=True)
self.ole32 = ctypes.OleDLL('ole32')
self.ole32.CoInitialize(0)
WinEventProcType = ctypes.WINFUNCTYPE(
None, ctypes.wintypes.HANDLE, ctypes.wintypes.DWORD,
ctypes.wintypes.HWND, ctypes.wintypes.LONG, ctypes.wintypes.LONG,
ctypes.wintypes.DWORD, ctypes.wintypes.DWORD)
self.WinEventProc = WinEventProcType(self.callback)
self.user32.SetWinEventHook.restype = ctypes.wintypes.HANDLE
def run(self):
build = self.reinitialize_command('build')
build.run()
if build.build_lib is not None:
sys.path.insert(0, build.build_lib)
# Register our ATL COM tester dll
dll = ctypes.OleDLL(r"source\debug\AvmcIfc.dll")
dll.DllRegisterServer()
import comtypes.test
comtypes.test.use_resources.extend(self.use_resources)
for name in self.tests:
package = __import__(name, globals(), locals(), ['*'])
sys.stdout.write("Testing package %s %s\n"
% (name, (sys.version, sys.platform, os.name)))
comtypes.test.run_tests(package,
"test_*.py",
self.verbose,
self.refcounts)
def fix_scaling():
import sys
if sys.platform == 'win32':
import ctypes
PROCESS_SYSTEM_DPI_AWARE = 1
ctypes.OleDLL('shcore').SetProcessDpiAwareness(PROCESS_SYSTEM_DPI_AWARE)
# unittest for SOME ctypes com function calls.
# Can't resist from implementing some kind of mini-comtypes
# theller ;-)
import pytest
import sys
if sys.platform != "win32":
# this doesn't work, it still tries to do module-level imports
# pytestmark = pytest.mark.skip("skip_the_whole_module")
pytest.importorskip('skip_the_whole_module') # hack!
import ctypes, types, unittest
from ctypes import HRESULT
from _ctypes import COMError
oleaut32 = ctypes.OleDLL("oleaut32")
class UnboundMethod(object):
def __init__(self, func, index, name):
self.func = func
self.index = index
self.name = name
self.__doc__ = func.__doc__
def __repr__(self):
return "<Unbound COM method index %d: %s at %x>" % (
self.index, self.name, id(self))
def __get__(self, instance, owner):
if instance is None:
#!/usr/bin/env python
from __future__ import print_function, absolute_import, division, unicode_literals
import ctypes as ct
from ctypes import wintypes as wt
from ctypes.util import find_library
from . import daqh
#initialize Daqx.dll
# Retocamos esto
dll = find_library('daqx')
#print("Dll = ", dll)
print('Estas usando el que esta en Anaconda3\lib')
daq = ct.OleDLL(r'C:\Users\Administrator\Downloads\PyIOTech-master\Daqx64.dll')
class deviceProps(ct.Structure):
"""
This class emulates a C struct for the device properties calls
"""
_fields_ = [("deviceType", wt.DWORD), ("basePortAddress", wt.DWORD),
("dmaChannel", wt.DWORD), ("socket", wt.DWORD),
("interruptLevel", wt.DWORD), ("protocol", wt.DWORD),
("alias", ct.c_char * 64), ("maxAdChannels", wt.DWORD),
("maxDaChannels", wt.DWORD), ("maxDigInputBits", wt.DWORD),
("maxDigOutputBits", wt.DWORD), ("maxCtrChannels", wt.DWORD),
("mainUnitAdChannels", wt.DWORD),
("mainUnitDaChannels", wt.DWORD),
("mainUnitDigInputBits", wt.DWORD),
("mainUnitDigOutputBits", wt.DWORD),
("mainUnitCtrChannels", wt.DWORD), ("adFifoSize", wt.DWORD),
("daFifoSize", wt.DWORD), ("adResolution", wt.DWORD),
print('Desktop: ', kf.Desktop)
print('Programs: ', kf.Programs)
Print all known folder names and paths:
from knownfolders import table as kf_table
for k,v in kf_table.items():
print("{:<22}: {}".format(k,v))
'''
import ctypes
from ctypes import wintypes
__all__ = ['FOLDERID', 'get_known_folder_path']
_ole32 = ctypes.OleDLL('ole32')
_shell32 = ctypes.OleDLL('shell32')
class GUID(ctypes.Structure):
_fields_ = (('Data1', ctypes.c_ulong),
('Data2', ctypes.c_ushort),
('Data3', ctypes.c_ushort),
('Data4', ctypes.c_char * 8))
def __init__(self, guid_string):
_ole32.IIDFromString(guid_string, ctypes.byref(self))
REFKNOWNFOLDERID = LPIID = ctypes.POINTER(GUID)
_ole32.IIDFromString.argtypes = (
wintypes.LPCWSTR, # lpsz,
LPIID) # lpiid
def __init__(self, path, libtype=None, **kwargs):
"""Load a shared library.
For example, a C/C++, FORTRAN, C#, Java, Delphi, LabVIEW, ActiveX, ... library.
Based on the value of `libtype` this class will load the shared library as a:
* :class:`~ctypes.CDLL` if `libtype` is ``'cdll'``,
* :class:`~ctypes.WinDLL` if `libtype` is ``'windll'``,
* :class:`~ctypes.OleDLL` if `libtype` is ``'oledll'``,
* `System.Reflection.Assembly <Assembly_>`_ if `libtype` is ``'net'`` or ``'clr'`` ,
* :class:`~.py4j.java_gateway.JavaGateway` if `libtype` is ``'java'``, or
* comtypes.CreateObject_ if `libtype` is ``'com'``.
.. versionchanged:: 0.4
Added support for Java archives
.. versionchanged:: 0.5
Added support for COM_ libraries
.. _Assembly: https://msdn.microsoft.com/en-us/library/system.reflection.assembly(v=vs.110).aspx
.. _comtypes.CreateObject: https://pythonhosted.org/comtypes/#creating-and-accessing-com-objects
.. _COM: https://en.wikipedia.org/wiki/Component_Object_Model
Parameters
----------
path : :class:`str`
The path to the shared library.
The search order for finding the shared library is:
1. assume that a full or a relative (to the current working directory)
path is specified,
2. use :func:`ctypes.util.find_library` to find the shared library file,
3. search :data:`sys.path`, then
4. search :data:`os.environ['PATH'] <os.environ>` to find the shared library.
If loading a COM_ library then `path` represents the `progid <comtypes.CreateObject_>`_
argument.
libtype : :class:`str`, optional
The library type. The following values are currently supported:
* ``'cdll'`` -- for a library that uses the __cdecl calling convention
* ``'windll'`` or ``'oledll'`` -- for a __stdcall calling convention
* ``'net'`` or ``'clr'`` -- for Microsoft's .NET Framework (Common Language Runtime)
* ``'java'`` -- for a Java archive, ``.jar``, or Java byte code, ``.class``, file
* ``'com'`` -- for a COM_ library.
Default is ``'cdll'``.
.. tip::
Since the ``.jar`` or ``.class`` extension uniquely defines a Java library,
the `libtype` will be automatically set to ``'java'`` if `path` ends with
``.jar`` or ``.class``. If `path` starts with ``'{'`` and ends with ``'}'``
then this uniquely defines the Class ID for a COM_ library and so `libtype`
will be automatically set to ``'com'``.
**kwargs
Keyword arguments that are passed to the object that loads the library.
Raises
------
IOError
If the shared library cannot be loaded.
TypeError
If `libtype` is not a supported library type.
"""
# a reference to the shared library
self._lib = None
# a reference to the .NET Runtime Assembly
self._assembly = None
# a reference to the Py4J JavaGateway
self._gateway = None
if not path:
raise ValueError(
'You must specify the path, got {!r}'.format(path))
# fixes Issue #8, if `path` is a <class 'pathlib.Path'> object
if hasattr(path, 'as_posix'):
path = path.as_posix()
# try to automatically determine the libtype
if libtype is None:
if path.startswith('{') and path.endswith('}'):
libtype = 'com'
elif path.endswith('.jar') or path.endswith('.class'):
libtype = 'java'
else:
libtype = 'cdll'
else:
libtype = libtype.lower()
# create a new reference to `path` just in case the
# DEFAULT_EXTENSION is appended below so that the
# ctypes.util.find_library function call will use the
# unmodified value of `path`
_path = path
# assume a default extension if no extension was provided
ext = os.path.splitext(path)[1]
if libtype != 'java' and libtype != 'com' and not ext:
_path += DEFAULT_EXTENSION
if IS_PYTHON2:
_path = _path.encode(_encoding)
if libtype != 'com':
self._path = os.path.abspath(_path)
if not os.path.isfile(self._path):
# for find_library use the original 'path' value since it may be a library name
# without any prefix like 'lib', suffix like '.so', '.dylib' or version number
self._path = ctypes.util.find_library(path)
if self._path is None: # then search sys.path and os.environ['PATH']
success = False
search_dirs = sys.path + os.environ['PATH'].split(
os.pathsep)
for directory in search_dirs:
p = os.path.join(directory, _path)
if os.path.isfile(p):
self._path = p
success = True
break
if not success:
raise IOError(
'Cannot find the shared library {!r}'.format(path))
else:
self._path = _path
if libtype == 'cdll':
self._lib = ctypes.CDLL(self._path, **kwargs)
elif libtype == 'windll':
self._lib = ctypes.WinDLL(self._path, **kwargs)
elif libtype == 'oledll':
self._lib = ctypes.OleDLL(self._path, **kwargs)
elif libtype == 'com':
if not utils.is_comtypes_installed():
raise IOError(
'Cannot load a COM library because comtypes is not installed.\n'
'To install comtypes run: pip install comtypes')
from comtypes.client import CreateObject
self._lib = CreateObject(self._path, **kwargs)
elif libtype == 'java':
if not utils.is_py4j_installed():
raise IOError(
'Cannot load a Java file because Py4J is not installed.\n'
'To install Py4J run: pip install py4j')
from py4j.version import __version__
from py4j.java_gateway import JavaGateway, GatewayParameters
# the address and port to use to host the py4j.GatewayServer
address = kwargs.pop('address', '127.0.0.1')
port = kwargs.pop('port', utils.get_available_port())
# find the py4j JAR (needed to import py4j.GatewayServer on the Java side)
root = os.path.dirname(sys.executable)
filename = 'py4j' + __version__ + '.jar'
py4j_jar = os.path.join(root, 'share', 'py4j', filename)
if not os.path.isfile(py4j_jar):
root = os.path.dirname(
root) # then check one folder up (for unix or venv)
py4j_jar = os.path.join(root, 'share', 'py4j', filename)
if not os.path.isfile(py4j_jar):
py4j_jar = os.environ.get(
'PY4J_JAR', '') # then check the environment variable
if not os.path.isfile(py4j_jar):
raise IOError(
'Cannot find {0}\nCreate a PY4J_JAR environment '
'variable to be equal to the full path to {0}'.
format(filename))
# build the java command
wrapper = os.path.join(os.path.dirname(__file__),
'py4j-wrapper.jar')
cmd = [
'java', '-cp', py4j_jar + os.pathsep + wrapper, 'Py4JWrapper',
str(port)
]
# from the URLClassLoader documentation:
# Any URL that ends with a '/' is assumed to refer to a directory. Otherwise, the URL
# is assumed to refer to a JAR file which will be downloaded and opened as needed.
if ext == '.jar':
cmd.append(self._path)
else: # it is a .class file
cmd.append(os.path.dirname(self._path) + '/')
try:
# start the py4j.GatewayServer, cannot use subprocess.call() because it blocks
subprocess.Popen(cmd, stderr=sys.stderr, stdout=sys.stdout)
err = None
except IOError as e:
err = str(
e
) + '\nYou must have a Java Runtime Environment installed and available on PATH'
if err:
raise IOError(err)
utils.wait_for_server(address, port, 5.0)
self._gateway = JavaGateway(gateway_parameters=GatewayParameters(
address=address, port=port, **kwargs))
self._lib = self._gateway.jvm
elif libtype == 'net' or libtype == 'clr':
if not utils.is_pythonnet_installed():
raise IOError(
'Cannot load a .NET Assembly because pythonnet is not installed.\n'
'To install pythonnet run: pip install pythonnet')
import clr
try:
# By default, pythonnet can only load libraries that are for .NET 4.0+.
#
# In order to allow pythonnet to load a library from .NET <4.0 the
# useLegacyV2RuntimeActivationPolicy property needs to be enabled
# in a <python-executable>.config file. If the following statement
# raises a FileLoadException then attempt to create the configuration
# file that has the property enabled and then notify the user why
# loading the library failed and ask them to re-run their Python
# script to load the .NET library.
self._assembly = clr.System.Reflection.Assembly.LoadFile(
self._path)
except clr.System.IO.FileLoadException as err:
# Example error message that can occur if the library is for .NET <4.0,
# and the useLegacyV2RuntimeActivationPolicy is not enabled:
#
# " Mixed mode assembly is built against version 'v2.0.50727' of the
# runtime and cannot be loaded in the 4.0 runtime without additional
# configuration information. "
if str(err).startswith('Mixed mode assembly'):
status, msg = utils.check_dot_net_config(sys.executable)
if not status == 0:
raise IOError(msg)
else:
update_msg = 'Checking .NET config returned "{}" '.format(
msg)
update_msg += 'and still cannot load library.\n'
update_msg += str(err)
raise IOError(update_msg)
raise IOError(
'The above "System.IO.FileLoadException" is not handled.\n'
)
# the shared library must be available in sys.path
head, tail = os.path.split(self._path)
if IS_PYTHON2:
head = head.decode(_encoding)
sys.path.append(head)
# don't include the library extension
clr.AddReference(os.path.splitext(tail)[0])
import System
dotnet = {'System': System}
try:
types = self._assembly.GetTypes()
except Exception as e:
logger.error(e)
logger.error('The LoaderExceptions are:')
for item in e.LoaderExceptions:
logger.error(' ' + item.Message)
else:
for t in types:
try:
if t.Namespace:
obj = __import__(t.Namespace)
else:
obj = getattr(__import__('clr'), t.FullName)
except:
obj = t
obj.__name__ = t.FullName
if obj.__name__ not in dotnet:
dotnet[obj.__name__] = obj
self._lib = DotNet(dotnet, self._path)
else:
raise TypeError('Cannot load libtype={}'.format(libtype))
if IS_PYTHON2:
self._path = self._path.decode(_encoding)
logger.debug('Loaded ' + self._path)
def __init__(self, path, libtype='cdll'):
self._net = None
# assume a default extension if no extension was provided
if not os.path.splitext(path)[1]:
if IS_WINDOWS:
path += '.dll'
elif IS_LINUX:
path += '.so'
elif IS_MAC:
path += '.dylib'
self._path = os.path.abspath(path)
if not os.path.isfile(self._path):
raise IOError('Cannot find the shared library ' + self._path +
'\n')
if libtype == 'cdll':
self._lib = ctypes.CDLL(self._path)
elif libtype == 'windll':
self._lib = ctypes.WinDLL(self._path)
elif libtype == 'oledll':
self._lib = ctypes.OleDLL(self._path)
elif libtype == 'net' and self.is_python_net_installed():
import clr
try:
# pythonnet can only load libraries that are .NET 4.0+
self._net = clr.System.Reflection.Assembly.LoadFile(self._path)
except clr.System.IO.FileLoadException as err:
# Example error message that can be displayed if the library is for .NET <4.0 is:
#
# " Mixed mode assembly is built against version 'v2.0.50727' of the
# runtime and cannot be loaded in the 4.0 runtime without additional
# configuration information. "
#
# To solve this problem, a <python-executable>.config file must exist and it must
# contain a useLegacyV2RuntimeActivationPolicy property that is set to be True
if "Mixed mode assembly" in str(err):
status, msg = self.check_dot_net_config(sys.executable)
if not status == 0:
raise IOError(msg)
else:
update_msg = 'Checking .NET config returned "{}"'.format(
msg)
update_msg += ' and still cannot load library.\n'
update_msg += str(err)
raise IOError(update_msg)
raise IOError(
'The above "System.IO.FileLoadException" is not handled.\n'
)
# the shared library must available be in sys.path
head, tail = os.path.split(self._path)
sys.path.insert(0, head)
# don't include the library extension
clr.AddReference(os.path.splitext(tail)[0])
# import the .NET module from the library
exports = self._net.GetExportedTypes()
self._lib = __import__(exports[0].Namespace)
else:
raise TypeError('Invalid library type: {}'.format(libtype))
self.file.flush(data)
self.stream.flush(data)
logfile = open(args.output, 'w')
# this is not ideal: we monkeypatch stdout/stderr a second time
# (already did for Unbuffered), so here we can't easily detect what
# state we're in on closedown. Just hope it's okay...
sys.stdout = Tee(logfile, sys.stdout)
sys.stderr = Tee(logfile, sys.stderr)
# --- define helpers ----
if sys.platform == 'win32':
# thanks to Eryk Sun for this recipe
import ctypes
shlwapi = ctypes.OleDLL('shlwapi')
shlwapi.AssocQueryStringW.argtypes = (
ctypes.c_ulong, # flags
ctypes.c_ulong, # str
ctypes.c_wchar_p, # pszAssoc
ctypes.c_wchar_p, # pszExtra
ctypes.c_wchar_p, # pszOut
ctypes.POINTER(ctypes.c_ulong), # pcchOut
)
ASSOCF_NOTRUNCATE = 0x00000020
ASSOCF_INIT_IGNOREUNKNOWN = 0x00000400
ASSOCSTR_COMMAND = 1
ASSOCSTR_EXECUTABLE = 2
E_POINTER = ctypes.c_long(0x80004003).value
import tkinter as tk
from tkinter import ttk, filedialog, messagebox, font
import pathlib
import configparser
import itertools
import sys
import widgets
import file
import toolbar
if sys.platform == "win32":
try:
import ctypes
PROCESS_SYSTEM_DPI_AWARE = 1
shcore = ctypes.OleDLL("shcore")
shcore.SetProcessDpiAwareness(PROCESS_SYSTEM_DPI_AWARE)
except (ImportError, AttributeError, OSError):
pass
COUNTER = itertools.count().__next__
BASE = pathlib.Path()
SETTINGS = configparser.ConfigParser()
if (BASE / ".config").exists():
SETTINGS.read(".config")
else:
SETTINGS["default"] = {
"current_directory": str(BASE.home()),
"opened_files": [],
}
def __init__(self, path, libtype=None, **kwargs):
"""Load a shared library.
For example, a C/C++, FORTRAN, C#, Java, Delphi, LabVIEW, ActiveX, ... library.
.. versionchanged:: 0.4
Added support for Java archives.
.. versionchanged:: 0.5
Added support for COM_ libraries.
.. versionchanged:: 0.9
Added support for ActiveX_ libraries.
.. _Assembly: https://docs.microsoft.com/en-us/dotnet/api/system.reflection.assembly
.. _comtypes.CreateObject: https://pythonhosted.org/comtypes/#creating-and-accessing-com-objects
.. _COM: https://en.wikipedia.org/wiki/Component_Object_Model
.. _ActiveX: https://en.wikipedia.org/wiki/ActiveX
Parameters
----------
path : :class:`str`
The path to the shared library.
The search order for finding the shared library is:
1. assume that a full or a relative (to the current working directory)
path is specified,
2. use :func:`ctypes.util.find_library` to find the shared library file,
3. search :data:`sys.path`, then
4. search :data:`os.environ['PATH'] <os.environ>` to find the shared library.
If loading a COM_ library then `path` is either the `ProgID`, e.g.
``"InternetExplorer.Application"``, or the `CLSID`, e.g.
``"{2F7860A2-1473-4D75-827D-6C4E27600CAC}"``.
libtype : :class:`str`, optional
The library type. The following values are currently supported:
* ``'cdll'`` -- for a library that uses the __cdecl calling convention
* ``'windll'`` or ``'oledll'`` -- for a __stdcall calling convention
* ``'net'`` or ``'clr'`` -- for Microsoft's .NET Framework (Common Language Runtime)
* ``'java'`` -- for a Java archive, ``.jar``, or Java byte code, ``.class``, file
* ``'com'`` -- for a COM_ library
* ``'activex'`` -- for an ActiveX_ library
Default is ``'cdll'``.
.. tip::
Since the ``.jar`` or ``.class`` extension uniquely defines a Java library,
the `libtype` will be automatically set to ``'java'`` if `path` ends with
``.jar`` or ``.class``.
**kwargs
All additional keyword arguments are passed to the object that loads the library.
If `libtype` is
* ``'cdll'`` then :class:`~ctypes.CDLL`
* ``'windll'`` then :class:`~ctypes.WinDLL`
* ``'oledll'`` then :class:`~ctypes.OleDLL`
* ``'net'`` or ``'clr'`` then all keyword arguments are ignored
* ``'java'`` then :class:`~.py4j.java_gateway.JavaGateway`
* ``'com'`` then comtypes.CreateObject_
* ``'activex'`` then :meth:`Application.load <msl.loadlib.activex.Application.load>`
Raises
------
OSError
If the shared library cannot be loaded.
ValueError
If the value of `libtype` is not supported.
"""
# a reference to the shared library
self._lib = None
# a reference to the .NET Runtime Assembly
self._assembly = None
# a reference to the Py4J JavaGateway
self._gateway = None
if not path:
raise ValueError(
'You must specify the path, got {!r}'.format(path))
# fixes Issue #8, if `path` is a <class 'pathlib.Path'> object
if hasattr(path, 'as_posix'):
path = path.as_posix()
# try to automatically determine the libtype
if libtype is None:
if path.endswith('.jar') or path.endswith('.class'):
libtype = 'java'
else:
libtype = 'cdll'
else:
libtype = libtype.lower()
if libtype not in LoadLibrary.LIBTYPES:
raise ValueError('Cannot load libtype={!r}.\n'
'Must be one of: {}'.format(
libtype, ', '.join(LoadLibrary.LIBTYPES)))
# create a new reference to `path` just in case the
# DEFAULT_EXTENSION is appended below so that the
# ctypes.util.find_library function call will use the
# unmodified value of `path`
_path = path
# assume a default extension if no extension was provided
ext = os.path.splitext(path)[1]
if not ext and libtype not in ['java', 'com', 'activex']:
_path += DEFAULT_EXTENSION
if IS_PYTHON2:
_path = _path.encode(_encoding)
if libtype not in ['com', 'activex']:
self._path = os.path.abspath(_path)
if not os.path.isfile(self._path):
# for find_library use the original 'path' value since it may be a library name
# without any prefix like 'lib', suffix like '.so', '.dylib' or version number
self._path = ctypes.util.find_library(path)
if self._path is None: # then search sys.path and os.environ['PATH']
success = False
search_dirs = sys.path + os.environ['PATH'].split(
os.pathsep)
for directory in search_dirs:
p = os.path.join(directory, _path)
if os.path.isfile(p):
self._path = p
success = True
break
if not success:
raise OSError(
"Cannot find '{}' for libtype='{}'".format(
path, libtype))
else:
self._path = _path
if libtype == 'cdll':
self._lib = ctypes.CDLL(self._path, **kwargs)
elif libtype == 'windll':
self._lib = ctypes.WinDLL(self._path, **kwargs)
elif libtype == 'oledll':
self._lib = ctypes.OleDLL(self._path, **kwargs)
elif libtype == 'com':
if not utils.is_comtypes_installed():
raise OSError(
'Cannot load a COM library because comtypes is not installed.\n'
'Run: pip install comtypes')
from comtypes import GUID
from comtypes.client import CreateObject
try:
clsid = GUID.from_progid(self._path)
except (TypeError, OSError):
clsid = None
if clsid is None:
raise OSError(
"Cannot find '{}' for libtype='com'".format(path))
self._lib = CreateObject(clsid, **kwargs)
elif libtype == 'activex':
from .activex import Application
self._lib = Application.load(self._path, **kwargs)
elif libtype == 'java':
if not utils.is_py4j_installed():
raise OSError(
'Cannot load a Java file because Py4J is not installed.\n'
'Run: pip install py4j')
from py4j.version import __version__
from py4j.java_gateway import JavaGateway, GatewayParameters
# the address and port to use to host the py4j.GatewayServer
address = kwargs.pop('address', '127.0.0.1')
port = kwargs.pop('port', utils.get_available_port())
# find the py4j*.jar file (needed to import the py4j.GatewayServer on the Java side)
filename = 'py4j' + __version__ + '.jar'
py4j_jar = os.environ.get('PY4J_JAR')
if py4j_jar:
if not os.path.isfile(
py4j_jar) or os.path.basename(py4j_jar) != filename:
raise OSError(
'A PY4J_JAR environment variable exists, '
'but the full path to the {} file is invalid\n'
'PY4J_JAR={}'.format(filename, py4j_jar))
else:
root = os.path.dirname(sys.executable)
for item in [
root,
os.path.dirname(root),
os.path.join(os.path.expanduser('~'), '.local')
]:
py4j_jar = os.path.join(item, 'share', 'py4j', filename)
if os.path.isfile(py4j_jar):
break
if not os.path.isfile(py4j_jar):
raise OSError(
'Cannot find {0}\nCreate a PY4J_JAR environment '
'variable to be equal to the full path to {0}'.format(
filename))
# build the java command
wrapper = os.path.join(os.path.dirname(__file__),
'py4j-wrapper.jar')
cmd = [
'java', '-cp', py4j_jar + os.pathsep + wrapper, 'Py4JWrapper',
str(port)
]
# from the URLClassLoader documentation:
# Any URL that ends with a '/' is assumed to refer to a directory. Otherwise, the URL
# is assumed to refer to a JAR file which will be downloaded and opened as needed.
if ext == '.jar':
cmd.append(self._path)
else: # it is a .class file
cmd.append(os.path.dirname(self._path) + '/')
err = None
try:
# start the py4j.GatewayServer
flags = 0x08000000 if IS_WINDOWS else 0 # fixes issue 31, CREATE_NO_WINDOW = 0x08000000
subprocess.Popen(cmd,
stderr=subprocess.PIPE,
stdout=subprocess.PIPE,
creationflags=flags)
except OSError as e:
err = str(e).rstrip()
err += '\nYou must have a Java Runtime Environment installed and available on PATH'
if err:
raise OSError(err)
try:
utils.wait_for_server(address, port, 10.0)
except OSError as e:
err = str(e).rstrip()
err += '\nCould not start the Py4J GatewayServer'
if err:
raise OSError(err)
self._gateway = JavaGateway(gateway_parameters=GatewayParameters(
address=address, port=port, **kwargs))
self._lib = self._gateway.jvm
elif libtype == 'net' or libtype == 'clr':
if not utils.is_pythonnet_installed():
raise OSError(
'Cannot load a .NET Assembly because pythonnet is not installed.\n'
'Run: pip install pythonnet')
import clr
import System
dotnet = {'System': System}
# the shared library must be available in sys.path
head, tail = os.path.split(self._path)
sys.path.insert(0, head)
try:
# don't include the library extension
clr.AddReference(os.path.splitext(tail)[0])
except (System.IO.FileNotFoundException,
System.IO.FileLoadException):
# The file must exist since its existence is checked above.
# There must be another reason why loading the DLL raises this
# error. Calling LoadFile (below) provides more information
# in the error message.
pass
try:
# By default, pythonnet can only load libraries that are for .NET 4.0+
#
# In order to allow pythonnet to load a library from .NET <4.0 the
# useLegacyV2RuntimeActivationPolicy property needs to be enabled
# in a <python-executable>.config file. If the following statement
# raises a FileLoadException then attempt to create the configuration
# file that has the property enabled and then notify the user why
# loading the library failed and ask them to re-run their Python
# script to load the .NET library.
self._assembly = System.Reflection.Assembly.LoadFile(
self._path)
except System.IO.FileLoadException as err:
# Example error message that can occur if the library is for .NET <4.0,
# and the useLegacyV2RuntimeActivationPolicy is not enabled:
#
# " Mixed mode assembly is built against version 'v2.0.50727' of the
# runtime and cannot be loaded in the 4.0 runtime without additional
# configuration information. "
if str(err).startswith(
'Mixed mode assembly is built against version'):
status, msg = utils.check_dot_net_config(sys.executable)
if not status == 0:
raise OSError(msg)
else:
update_msg = 'Checking .NET config returned "{}" '.format(
msg)
update_msg += 'and still cannot load library.\n'
update_msg += str(err)
raise OSError(update_msg)
raise OSError(
'The above "System.IO.FileLoadException" is not handled.\n'
)
try:
types = self._assembly.GetTypes()
except Exception as e:
utils.logger.error(e)
utils.logger.error('The LoaderExceptions are:')
for item in e.LoaderExceptions:
utils.logger.error(' ' + item.Message)
else:
for t in types:
try:
if t.Namespace:
obj = __import__(t.Namespace)
else:
obj = getattr(__import__('clr'), t.FullName)
except:
obj = t
obj.__name__ = t.FullName
if obj.__name__ not in dotnet:
dotnet[obj.__name__] = obj
self._lib = DotNet(dotnet, self._path)
else:
assert False, 'Should not get here -- contact developers'
if IS_PYTHON2:
self._path = self._path.decode(_encoding)
utils.logger.debug('Loaded ' + self._path)
basedir = tempfile.gettempdir()
gen_dir = os.path.join(basedir, subdir)
if not os.path.exists(gen_dir):
logger.info("Creating writeable comtypes cache directory: '%s'",
gen_dir)
os.makedirs(gen_dir)
gen_path.append(gen_dir)
result = os.path.abspath(gen_path[-1])
logger.info("Using writeable comtypes cache directory: '%s'", result)
return result
################################################################
SHGetSpecialFolderPath = ctypes.OleDLL("shell32.dll").SHGetSpecialFolderPathW
GetModuleFileName = ctypes.WinDLL("kernel32.dll").GetModuleFileNameW
SHGetSpecialFolderPath.argtypes = [
ctypes.c_ulong, ctypes.c_wchar_p, ctypes.c_int, ctypes.c_int
]
GetModuleFileName.restype = ctypes.c_ulong
GetModuleFileName.argtypes = [ctypes.c_ulong, ctypes.c_wchar_p, ctypes.c_ulong]
CSIDL_APPDATA = 26
MAX_PATH = 260
def _create_comtypes_gen_package():
"""Import (creating it if needed) the comtypes.gen package."""
try:
import comtypes.gen
# THIS SCRIPT SHOULD NOT BE ALTERED
import ctypes, sys, os, time, heapq
# Check the dll path is correct
dll_path = "C:\Users\LocalAdmin\Desktop\Pysepia\Sepia2_Lib.dll"
if (os.path.exists(dll_path) == True):
print '\n PYSEPIA: The .dll path is correct \n'
else:
sys.exit(
'\n PYSEPIA: The .dll path is incorrect - please give the correct path for the Sepia2_Lib.dll file \n'
)
print dll_path
#sepiadll = ctypes.WinDLL(dll_path)
sepiadll = ctypes.OleDLL(dll_path)
# Open the .dll library and returns the library's version number
def SEPIA2_LIB_GetVersion():
cLibVersion = " "
SEPIA2_LIB_GetVersion_Proto = ctypes.WINFUNCTYPE(ctypes.c_int,
ctypes.c_char_p)
SEPIA2_LIB_GetVersion_Params = (1, "p1", 0),
SEPIA2_LIB_GetVersion_API = SEPIA2_LIB_GetVersion_Proto(
("SEPIA2_LIB_GetVersion", sepiadll), SEPIA2_LIB_GetVersion_Params)
p1 = ctypes.c_char_p(cLibVersion)
SEPIA2_LIB_GetVersion_API(p1)
return p1.value
def SEPIA2_LIB_DecodeError():
bytes = lambda x: str(buffer(x))
from ctypes import wintypes
from win32com.shell import shell, shellcon
from win32com.propsys import propsys, pscon
# KNOWNFOLDERID
# https://msdn.microsoft.com/en-us/library/dd378457
# win32com defines most of these, except the ones added in Windows 8.
FOLDERID_AppsFolder = pywintypes.IID(
"{1e87508d-89c2-42f0-8a7e-645a0f50ca58}")
# win32com is missing SHGetKnownFolderIDList, so use ctypes.
_ole32 = ctypes.OleDLL("ole32")
_shell32 = ctypes.OleDLL("shell32")
_REFKNOWNFOLDERID = ctypes.c_char_p
_PPITEMIDLIST = ctypes.POINTER(ctypes.c_void_p)
_ole32.CoTaskMemFree.restype = None
_ole32.CoTaskMemFree.argtypes = (wintypes.LPVOID, )
_shell32.SHGetKnownFolderIDList.argtypes = (
_REFKNOWNFOLDERID, # rfid
wintypes.DWORD, # dwFlags
wintypes.HANDLE, # hToken
_PPITEMIDLIST,
) # ppidl
# ctypes needed to convert parameters from python to C representation and vice versa
import ctypes as ct
from ctypes import wintypes as wt
from ctypes.util import find_library
import sys
import traceback
import daqxh #definitions found in daqx.h
import numpy as np
#detect if OS is 64bit or 32bit; this code is a bit of a hack, but found no better solution
is_64bit = sys.maxsize > 2**32
if is_64bit:
daq = ct.OleDLL("daqx64") #load 64bit dll 'daqx64.dll'
else:
daq = ct.OleDLL("daqx") #load 32bit dll 'daqx.dll'
#
# assume enum types in header file are 32bit integers
#
#======================================================================
#
#Error Handling
#
#======================================================================
class IOTechLibraryBaseError( Exception ):