diff --git a/Lib/ctypes/test/test_win32.py b/Lib/ctypes/test/test_win32.py index 8247d370d39..eb016ffbc7d 100644 --- a/Lib/ctypes/test/test_win32.py +++ b/Lib/ctypes/test/test_win32.py @@ -30,15 +30,11 @@ if sys.platform == "win32": # or wrong calling convention self.assertRaises(ValueError, IsWindow, None) - def test_SEH(self): - # Call functions with invalid arguments, and make sure that access violations - # are trapped and raise an exception. - # - # Normally, in a debug build of the _ctypes extension - # module, exceptions are not trapped, so we can only run - # this test in a release build. - import sys - if not hasattr(sys, "getobjects"): + import _ctypes + if _ctypes.uses_seh(): + def test_SEH(self): + # Call functions with invalid arguments, and make sure that access violations + # are trapped and raise an exception. self.assertRaises(WindowsError, windll.kernel32.GetModuleHandleA, 32) class Structures(unittest.TestCase): diff --git a/Modules/_ctypes/callproc.c b/Modules/_ctypes/callproc.c index 16e10dedad2..4ec1f13d809 100644 --- a/Modules/_ctypes/callproc.c +++ b/Modules/_ctypes/callproc.c @@ -1526,7 +1526,21 @@ resize(PyObject *self, PyObject *args) return Py_None; } +static PyObject * +uses_seh(PyObject *self, PyObject *args) +{ +#if defined(DONT_USE_SEH) || !defined(MS_WIN32) + Py_INCREF(Py_False); + return Py_False; +#else + Py_INCREF(Py_True); + return Py_True; +#endif +} + PyMethodDef module_methods[] = { + {"uses_seh", uses_seh, METH_NOARGS, + "Return whether ctypes uses Windows structured exception handling"}, {"resize", resize, METH_VARARGS, "Resize the memory buffer of a ctypes instance"}, #ifdef CTYPES_UNICODE {"set_conversion_mode", set_conversion_mode, METH_VARARGS, set_conversion_mode_doc},