def __comtype_to_pywin_obj(ptr, interface):
"""Convert a comtypes pointer 'ptr' into a pythoncom PyI<interface> object.
'interface' specifies the interface we want; it must be a comtypes
interface class. The interface must be implemented by the object;
and the interface must be known to pythoncom.
"""
com_obj = PyDLL(pythoncom.__file__).PyCom_PyObjectFromIUnknown
com_obj.restype = ctypes.py_object
com_obj.argtypes = (ctypes.POINTER(IUnknown), ctypes.c_void_p, BOOL)
# noinspection PyProtectedMember
return com_obj(ptr._comobj, byref(interface._iid_), True)
# Fortunately this function is exported by the dll...
#
# This is the C prototype; we must pass 'True' as third argument:
#
# PyObject *PyCom_PyObjectFromIUnknown(IUnknown *punk, REFIID riid, BOOL bAddRef)
_PyCom_PyObjectFromIUnknown = PyDLL(
pythoncom.__file__).PyCom_PyObjectFromIUnknown
_PyCom_PyObjectFromIUnknown.restype = py_object
_PyCom_PyObjectFromIUnknown.argtypes = (POINTER(IUnknown), c_void_p, BOOL)
def comtypes2pywin(ptr, interface=None):
"""Convert a comtypes pointer 'ptr' into a pythoncom
PyI<interface> object.
'interface' specifies the interface we want; it must be a comtypes
interface class. The interface must be implemented by the object;
and the interface must be known to pythoncom.
requires("pythoncom")
import pythoncom
import win32com.client
# We use the PyCom_PyObjectFromIUnknown function in pythoncom25.dll to
# convert a comtypes COM pointer into a pythoncom COM pointer.
# Fortunately this function is exported by the dll...
#
# This is the C prototype; we must pass 'True' as third argument:
#
# PyObject *PyCom_PyObjectFromIUnknown(IUnknown *punk, REFIID riid, BOOL bAddRef)
_PyCom_PyObjectFromIUnknown = PyDLL(pythoncom.__file__).PyCom_PyObjectFromIUnknown
_PyCom_PyObjectFromIUnknown.restype = py_object
_PyCom_PyObjectFromIUnknown.argtypes = (POINTER(IUnknown), c_void_p, BOOL)
def comtypes2pywin(ptr, interface=None):
"""Convert a comtypes pointer 'ptr' into a pythoncom
PyI<interface> object.
'interface' specifies the interface we want; it must be a comtypes
interface class. The interface must be implemented by the object;
and the interface must be known to pythoncom.
If 'interface' is specified, comtypes.IUnknown is used.
"""
if interface is None:
interface = IUnknown
return _PyCom_PyObjectFromIUnknown(ptr, byref(interface._iid_), True)