comtypes

• Fix TYPE_E_ELEMENTNOTFOUND HRESULT constant value. By @junkmd.
• Enhance ITypeInfo testing in test_typeinfo.py. By @junkmd.
• Improve type hints for for generated dispmethods and properties. By @junkmd.
• Enhance tests for generated type hints. By @junkmd.
• Remove Internet Explorer dependency from test_QueryService.py and test_casesensitivity.py. By @junkmd.
• Rename test_ie.py to test_eventinterface.py. By @junkmd.
• Fix SyntaxError in DispMethodAnnotator signature generation. By @junkmd.
• Rename test_msi.py to test_puredispatch.py. By @junkmd.
• Rename test_wmi.py to test_variant_outparam.py. By @junkmd.
• Replace the module-level skip with individual @skip decorators on the test methods in test_eventinterface.py. By @junkmd.
• Add tests for stdole.IPicture creation through IStream. By @junkmd.
• Improve enum testing in test_client.py. By @junkmd.
• Revive and enhance test_outparam. By @junkmd.
• Enhance test_stream. By @junkmd.
• Enhance test_storage. By @junkmd.
• Add malloc module. By @junkmd.
• Enhance and refactor COM moniker tests. By @junkmd.
• Refine type hints and enhance tests for client.GetClassObject, CoGetClassObject and IClassFactory. By @junkmd.
• Implement ITypeInfo.AddressOfMember with tests and clarifications. By @junkmd.
• Enhance ITypeComp.Bind tests and type hints. By @junkmd.
• Introduce warnings for Python 3.15 enum compatibility. By @junkmd.

• Replace setup.py with pyproject.toml. By @moi15moi.
• Update codebases for PEP585 compliance. By @junkmd.

• Remove Python 3.8 and add Python 3.14 to the CI pipelines. By @junkmd.
• Declare the minimum Python version as 3.9. By @junkmd. By @junkmd.
• Update PyCArgObject.value for Python 3.14 compatibility. By @junkmd.
• Add version bridges for the __pointer_type__ attribute protocol. By @junkmd.

• Add support for coverage. By @moi15moi.
• CI/CD Improvements for runners and the codecov badge. By @junkmd.
• Add signed 32-bit hexadecimal converters. By @junkmd.
• Add Test_Stat to test_stream. By @junkmd.
• Add client-side RegisterActiveObject. By @junkmd.
• Remove useless object inheritance from every class. By @moi15moi.
• Modernize super() calls by removing explicit class and instance arguments. By @moi15moi.
• Eliminate outdated encoding boilerplates. By @moi15moi.
• Update byte string creation to use b"" instead of str.encode("utf-8"). By @moi15moi.
• Introduce codecov.yml. By @moi15moi.
• Migrate exception catches from older aliases to OSError. By @moi15moi.
• Remove obsolete Python 2 compatibility code in test_variant. By @junkmd.
• Skip test_eval in INPROC server tests due to instability. By @junkmd.
• Adjust structure sizes and alignments for 64-bit Python in viewobject.py. By @junkmd.
• Add test_viewobject. By @junkmd.
• Ensure test_npsupport passes with numpy>=2.0.0 by explicitly setting dtype=numpy.int32. By @junkmd.
• Add tests for DictPropertyBag and type hints for IPropertyBag. By @junkmd.
• Fix numpy interoperability and enable datetime64 tests. By @junkmd.
• Revive and correct integer handling logic for VARIANTs when setting values. By @junkmd.
• Add tests for messageloop. By @junkmd.
• Revive util and add comprehensive tests. By @junkmd.
• Refactor and enhance util with explicit imports and typing. By @junkmd.
• Modernize npsupport by removing the patch for the np._typecodes. By @junkmd.

• Improve PARAMFLAG_... and DISPATCH_... constants definitions and imports. By @junkmd.
• Introduce the _CDataType alias from typeshed. By @junkmd.
• Replace 260 literals/constant definitions with imports from ctypes.wintypes.MAX_PATH. By @junkmd.
• Replace client._code_cache._get_module_filename with typeinfo.GetModuleFileName. By @junkmd.
• Improve client._code_cache.SHGetSpecialFolderPath definition. By @junkmd.
• Add type annotations to many modules. By @junkmd.
• Add constants to many modules. By @junkmd.
• Improve import block styles to many modules. By @junkmd.
• Add SupportErrorInfoTest to test_comserver. By @junkmd.
• Add test_errorinfo. By @junkmd.
• Improve the type safety of errorinfo.ReportException. By @junkmd.
• Change the method of retrieving the values of each field in _...MemberSpec from unpacking to dot access. By @junkmd.
• Split server.connectionpoints.ConnectionPointImpl._call_sinks. By @junkmd.
• Refactor create_vtbl_mapping, create_dispimpl and _encode_idl. By @junkmd.
• Add test_hresult. By @junkmd.
• Add Test_Vtbl to test_comobject.py. By @junkmd.
• Delint IUnknown_AddRef and IUnknown_Release. By @junkmd.
• Convert assertRaises usage to context manager for improved readability. By @junkmd.
• Remove the unused PATH variable from client/_generate.py. By @moi15moi.

• Replace GetModuleFileNameA with GetModuleFileNameW to prevent a TypeError. By @junkmd.
• Refactor server.register. By @junkmd.
• PythonClass and PythonPath are no longer registered in the registry for a frozen server. By @junkmd.
• Use WinDLL/OleDLL instead of windll/oledll. By @moi15moi.
• In tools.tlbparser, replace windll.oleaut32.QueryPathOfRegTypeLib with typeinfo.QueryPathOfRegTypeLib. By @moi15moi.
• Adjust QueryPathOfRegTypeLib docstring. By @moi15moi.
• Reserve blank lines in the generated modules. By @junkmd.
• Refactor tools subpackage. By @junkmd.
• Add ActiveObjTest to test_comserver. By @junkmd.
• Replace deprecated install command in CI pipelines. By @moi15moi.
• Remove unused parameters in _shutdown. By @moi15moi.
• Delete preview.bat. By @moi15moi.
• Remove unnecessary ruff lint rules from pyproject.toml. By @moi15moi.
• Refactor some code from client/__init__.py into modules. By @junkmd.
• Remove workarounds for Windows CE in find_memleak. By @junkmd.
• Format import blocks and add extend-select = ["I"] to [tool.ruff.lint]. By @junkmd.

• Separate patch processing within _com_interface_meta into a module. By @junkmd.
• Replace Literal and Protocol with runtime-referable symbols. By @junkmd.
• Refactor from % string formatting to f-strings in many modules. By @newwingbird.
• Refactor from % string formatting to f-strings in _post_coinit.unknwn. By @junkmd.
• Remove the script entry point in comtypes.shelllink. By @cosmastech.
• Move the modules that define IDL stuff and instancemethod. By @junkmd.
• Allow the definition of the _midlSAFEARRAY(HRESULT) type. By @davidschranz.
• Split server/w_getopt.py into production code and test code. By @junkmd.
• Add docstrings to the module defining the GUID symbol. By @junkmd.
• Fix broken unregistration of 64bit type libraries. By @forderud.
• Replace alias definitions with ctypes.wintypes imports. By @fmtabler.
• Revive pywin32 related tests. By @junkmd.
• Revive comserver related tests. By @junkmd.
• Separate the part that creates entries from server.register.Registrar and refactor it. By @junkmd.
• Add Test_Registrar_.... By @junkmd.
• Many typing improvements. By @junkmd.
• Separate vtbl creation within _comobject into a module. By @junkmd.
• Migrate the documentation from PythonHosted to ReadTheDocs. By @junkmd.

• Remove Python 3.7 and add Python 3.13 to the CI pipelines. By @junkmd.
• Add constant definitions to shelllink. By @junkmd.
• Add more tests to test_stream. By @junkmd.
• Add the void_type definition to tlbparser. By @junkmd.
• Modernize tools.tlbparser.get_tlib_filename. By @junkmd.
• Extract the methods for parsing externals and dual interfaces from Parser.parse_typeinfo. By @junkmd.
• Fix type annotations referenced by tlbparser. By @junkmd.
• Modernize codegenerator.namespaces. By @junkmd.
• Improve static typing for CoGetClassObject and GetClassObject. By @junkmd.
• Refactor the __new__ methods of _cominterface_meta and _coclass_meta. By @junkmd.
• Prevent errors caused by defining members with the same name within an enum type. By @junkmd.
• Remove remaining __cmp__ methods. By @newwingbird.
• Remove remaining from __future__ import print_function lines. By @newwingbird.
• Prevent itf to be an unbound variable in _cominterface_meta.__get_baseinterface_methodcount. By @newwingbird.
• Modify the metaclasses to ensure compatibility with Python 3.13 and earlier versions. By @junkmd.

• Improve _CArrayType alias import. By @junkmd.
• Rename _byref_type and _carg_obj to _CArgObject. By @junkmd.
• Fix typos and make the wording more natural in README.md. By @umarbutler.
• Modernize BSTR definition. By @junkmd.
• Modernize tagDEC definition. By @junkmd.
• Remove methods with mangling names in typeinfo. By @junkmd.
• Rename test_istream to test_stream. By @junkmd.
• Add test_msvidctl. By @junkmd.
• Add test_storage. By @junkmd.
• Add test_monikers. By @junkmd.
• Add test_shelllink. By @junkmd.
• Add test_persist. By @junkmd.
• Modernize persist. By @junkmd.
• Add type annotations to shelllink. By @junkmd.
• Bump python_requires to >=3.8 in setup.cfg. By @junkmd.

• Add tests and method annotations for IRecordInfo. By @junkmd.
• Improve static typings in automation. By @junkmd.
• Tidy up import part in some modules. By @junkmd.
• Refer to Any and Tuple from the hints stub instead of directly importing them in generated modules. By @junkmd.
• Modernize GUID.py. By @junkmd.
• Improve codegenerator.modulenamer static typing. By @junkmd.
• Avoid using keywords in TYPE_CHECKING blocks. By @junkmd.
• Improve member defining parts of ParseInterface and ParseDispatch. By @junkmd.
• Fix Annoying SyntaxWarning. By @v01d-gh.

• Split __init__.py into some modules. By @junkmd.
• Fix importing _DispMemberSpec in automation. By @junkmd.
• Fix importing _encode_idl in _comobject. By @junkmd.
• Change the name of the component that implements the interface for record parameter testing. By @geppi.
• Implement SAFEARRAY pointers and SAFEARRAYs as method parameters of a Dispatch Interface. By @geppi.
• Change the default value of the extra parameter in the create method of tagSAFEARRAY subtypes. By @geppi.
• Implement static import for ISequentialStream. By @jonschz.
• Modernize test_wmi. By @junkmd.
• Add static typing for _midlSAFEARRAY. By @junkmd.

• Stop mentioning the last version supporting Windows CE in README.md. By @forderud.
• Declare the minimum Python version as 3.7. By @jaraco.
• Move package configuration to declarative config. By @jaraco.

• Refactor test_findgendir. By @junkmd.
• Update test_GUID. By @junkmd.
• Add a feature to typeannotator that interprets the return value. By @junkmd.
• Update type annotations for _IUnknown_Base and IUnknown. By @junkmd.
• Add groupby_impltypeflags. By @junkmd.
• Add static typing for when a CoClass is assigned as the return value type. By @junkmd.
• Improve EnumerationNamespaces and CodeGenerator.enum_aliases. By @junkmd.
• Modernize constructor arguments and attributes of each stuff in typedesc. By @junkmd.
• Split codegenerator into some modules in the sub-package directory. By @junkmd.
• Implement record pointers as method parameters of a Dispatch Interface. By @geppi.
• Add npsupport to CI pipeline matrix. By @junkmd.
• Add "Frequently Asked Questions" to README.md. By @junkmd.

• Improve the stability of module generation by GetModule. By @junkmd.
• Define c_int aliases earlier than others in wrapper modules. By @junkmd.
• Remove trailing newlines generated by codegenerator and typeannotator. By @junkmd.
• Determine whether a interface is one of the known symbols not only by its name but also by using its iid. By @junkmd.
• Add Incomplete and Hresult to hints.pyi. By @junkmd.

• Fix TypeError when defining enumeration types. By @junkmd

This is the first major version supporting enumerations in friendly modules.

The names that were used as aliases for c_int within friendly modules will now be used as the names of enumeration types.

• Add enumeration definitions in generated friendly modules. By @junkmd.
• Add descriptions to index.rst about the enumeration types. By @junkmd.
• Add GitHub Actions auto-test workflow. By @junkmd.

• Add type annotations to dynamically generated modules. By @junkmd.
• Bring back Excel early-bind test. By @junkmd.
• update README.md. By @junkmd.

This is the first major version supporting Python 3 only.

• Improve error message on non Windows environments. By @CristiFati.
• Adjust styles of codebase. By @junkmd.
• Apply black==22.12.0 formatter. By @junkmd.
• Modernize client.dynamic. By @junkmd.
• Add tests for client.dynamic. By @junkmd.
• Fix test_client. By @junkmd.
• Fix test_getactiveobj. By @junkmd.
• Make explicit the symbols that imports from the wrapper module into the friendly module. By @junkmd.
• Modernize type annotations in statically defined modules. By @junkmd.
• Fix several type annotations in statically defined modules. By @jonschz and @junkmd.
• Remove sys.version_info bridges from production codebase. By @junkmd.
• Remove for_stub=True conditional branch from the tools.codegenerator.ImportedNamespaces.getvalue. By @junkmd.
• Fix codegenerator as generating __next__() instead of next() in IEnum.... By @jonschz.
• Add unit test for generated IEnum... interfaces. By @jonschz.
• Remove 'Programming Language :: Python :: 2.7' from setup.py. By @junkmd.
• Change the base class of _ComMemberSpec and _DispMemberSpec to typing.NamedTuple. By @junkmd.
• Delint and remove wildcard-import from typeinfo. By @junkmd.
• Split DISPPARAMS instantiation in IDispatch.Invoke method. By @junkmd.
• Move clear_comtypes_cache to be a callable comtypes.clear_cache module. By @bennyrowland.
• Wrapper modules are now imported into friendly modules using an abstracted name, __wrapper_module__. By @junkmd.
• Fix old index bug in call_with_inout within _fix_inout_args. By @jonschz.
• Fix CONTRIBUTING.md. By @junkmd.
• Update README.md. By @junkmd.

• Replace distutils with setuptools. By @junkmd.
• Add Python 3.12 testing into CI pipeline. By @junkmd.
• Set long description type to "markdown" to fix PyPI description rendering. By @junkmd.
• Add hints.pyi to package_data in setup.py which copies hints.pyi to correct install location. By @junkmd.
• Remove Python >=3.3, <=3.6 from CI pipeline. By @vasily-v-ryabov.

This is the last major version supporting Python 2.7. Next major one 1.3.0 will be Python3 only.

• Remove all automatic imports of numpy, and make numpy interop opt-in. By @bennyrowland.
• Move and redefine generating module functions for fixing cross imports. By @junkmd.
• Refactor creating __all__ part in codegenerator.Generator.generate_code. By @junkmd.
• Quit calling GetModule from tools.codegenerator. By @junkmd.
• Commonize module-creating functions. By @junkmd.
• Shorten the lifetime of io.StringIO used for code generation. By @junkmd.
• Fix import source of Array from _ctypes to ctypes. By @junkmd.
• Add for_stub mode to ImportedNamespaces.getvalue. By @junkmd.
• Remove monkeypatch_COMError. By @junkmd.
• Remove CodeGenerator.need_GUID. By @junkmd.
• Carve out CodeGenerator.type_name method to TypeNamer class. By @junkmd.
• Add __known_symbols__ attributes. By @junkmd.
• Remove CodeGenerator.type_name calls no longer needed and rename to _to_type_name. By @junkmd.
• Change _fix_inout_args to module-level top level function. By @junkmd.
• Fix docstring from DispInterfaceHead. By @junkmd.
• ...METHOD and ...PROPERTY return _MemberSpecs instead of tuples. By @junkmd.
• Make generating ...property DRY. By @junkmd.
• Refactor _MemberSpec stuffs and separate modules. By @junkmd.
• Carve out make_...Method and make_...Property of codegenerator. By @junkmd.
• Removed extra space in typeinfo.IRecordInfo._methods_. By @j0ker70.
• Add type annotations to many modules. By @junkmd.
• Fix type annotations in many modules. By @j0ker70, @muddi900, and @junkmd.
• Delint setup.py. By @jaraco.
• Add CONTRIBUTING.md. By @junkmd.
• Modernize README.md style. By @junkmd.
• Add announcements of plan for renaming master branch to main and dropping Python2 to README.md. By @junkmd.

• Fix SyntaxError in generated docstring. Thanks @junkmd.

• Many fixes in code generator. Thanks @junkmd.
• Make tests runnable on AppVeyor CI. Many improvements in tests. Thanks @junkmd and @dmwyatt.
• Update (bound_)named_property args and attributes names to be similar to builtin property. Thanks @junkmd.
• Refactor function GetModule and fix type lib timestamping for incomplete generated module. Thanks @junkmd.
• Fix recent numpy versions support. Thanks @mworion.
• Split Constants into a separate module. Thanks @junkmd.
• client.GetModule can take a one liner containing lib UUID. Thanks @junkmd.
• Use Generator.imports instead of Generator._externals. Thanks @junkmd.
• Rename README to README.md. Thanks @junkmd and @filipporomani.
• No patching or modifying typedesc.Obj.name in tools.codegenerator. Thanks @junkmd.
• Load enumerations into client.Constants. Thanks @junkmd.

• Fix setuptools>=57.5.0 compatibility. Thanks @kdschlosser.
• Fix timestamping for typelib. Thanks @fusentasticus.
• Fix 64bit inproc server. Thanks @klusidy.
• Drop Python 2.6 support (Python 2.7 is still supported).
• Fix IndexError for empty safearray. Thanks @BALOGHBence.
• Make numpy typecodes consistent across numpy versions. Thanks @bennyrowland.

• Fix loading module from relative path on Windows 7.

• Fix loading module from relative path.
• Use comtypes release version in code generator version check.

• Fix #161: "No module named 'comtypes.gen.stdole'". Thanks @fxthomas.
• Fix #178, #201 and #205: NumPy >= 1.16 support. Thanks @mobiusklein.
• Fix #115: Use the embedded timestamp for cache invalidation. Thanks @vijairaj.
• SlicerHeart/SlicerHeart#12: Allow customization of shutdown behavior (It fixes crash during exit in applications that embed Python). Thanks @lassoan.
• Fix #208: Extend GetModule() with CLSID support. Thanks @forderud.
• Fix #186: Invalid handling of WindowsError on Python 3. Thanks @leonardder.
• Fix #191, #196 and #199: End bdist_wininst support in setup.py. Thanks @wkschwartz.
• Drop Windows CE support. Thanks @forderud.

• Fix command pip install comtypes --no-cache-dir --target="C:\tmp" (issue #158).

• Fix pip install comtypes error: "option --single-version-externally-managed not recognized" (issue #155).

See CHANGES.txt for a list of changes since release 1.1.4.

• Fix TypeError when gen folder is unwriteable and it is a namespace package (#102). Thanks to @orf for the bug report. Thanks to @jornb for the initial proposal demonstrating a workaround.

See CHANGES.txt for a list of changes since release 1.1.2.

See CHANGES.txt for a list of changes since release 1.1.0.

See CHANGES.txt for a list of changes since release 1.0.0.

• #27: Replaced the partial module with a patcher module. This new technique patches the underlying classes explicitly. This technique avoids the problems with the metaclass magic on Python 3.
• Officially dropped support for Python 2.5.
• #25: Allow installation on non-Windows systems.
• #31: Improved 64-bit compatibility by specifying argtypes for GetMessage.