Hi everyone,
I am wanting to write a Python COM server with a data member created
by using the new Python 2.3
property() built-in function. When I attempt to access the member
through a client, I get
the ComError message saying that I cannot convert type property into a
VARIANT, so it looks
like the default exposure mechanism in pythoncom.dll is not working
properly.
Do you have any suggestions as to how I can wrap the property
properly? I'd much rather not create a
nonstandard pythoncom.dll to do the conversion unless I absolutely
must.
Thanks:
The Eternal Squire
(see below an example sketch of what I intend. I'm well aware that I
need the CLSID, PROGID, and other attributes in my example, let's
assume I did that and that I also know how to register a COM server).
---- cut here ---
class Friend:
'an object that modifies or uses the object which owns it'
def __init__ (self, top):
self.top = top
class SmartValue (Friend):
'an example of a managed attribute of a COM interface'
KEY = 'x'
def __init__ (self, top):
Friend.__init__ (self, top):
self.storage = 0
setattr (self.top, KEY, property (self.get, self.set))
self.top._publi c_attrs_ += [ self.KEY ]
def get (self):
return self.storage
def set (self, value):
self.storage = value
class COMInterface:
' an example COM interface template'
ELEMENTS = [ ]
def __init__ (self):
[ e (self) for e in self.ELEMENTS ]
class MyInterface (COMInterface):
' an example specific COM interface'
ELEMENTS = [ SmartValue ]
if __name__ == '__main__':
'code to register MyInterface would follow here'
--- cut here ---
I am wanting to write a Python COM server with a data member created
by using the new Python 2.3
property() built-in function. When I attempt to access the member
through a client, I get
the ComError message saying that I cannot convert type property into a
VARIANT, so it looks
like the default exposure mechanism in pythoncom.dll is not working
properly.
Do you have any suggestions as to how I can wrap the property
properly? I'd much rather not create a
nonstandard pythoncom.dll to do the conversion unless I absolutely
must.
Thanks:
The Eternal Squire
(see below an example sketch of what I intend. I'm well aware that I
need the CLSID, PROGID, and other attributes in my example, let's
assume I did that and that I also know how to register a COM server).
---- cut here ---
class Friend:
'an object that modifies or uses the object which owns it'
def __init__ (self, top):
self.top = top
class SmartValue (Friend):
'an example of a managed attribute of a COM interface'
KEY = 'x'
def __init__ (self, top):
Friend.__init__ (self, top):
self.storage = 0
setattr (self.top, KEY, property (self.get, self.set))
self.top._publi c_attrs_ += [ self.KEY ]
def get (self):
return self.storage
def set (self, value):
self.storage = value
class COMInterface:
' an example COM interface template'
ELEMENTS = [ ]
def __init__ (self):
[ e (self) for e in self.ELEMENTS ]
class MyInterface (COMInterface):
' an example specific COM interface'
ELEMENTS = [ SmartValue ]
if __name__ == '__main__':
'code to register MyInterface would follow here'
--- cut here ---
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