trybag.py
1.94 KB
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import pythoncom
from win32com.server import util
from win32com.server import exception
VT_EMPTY = pythoncom.VT_EMPTY
class Bag:
_public_methods_ = [ 'Read', 'Write' ]
_com_interfaces_ = [ pythoncom.IID_IPropertyBag ]
def __init__(self):
self.data = { }
def Read(self, propName, varType, errorLog):
print "read: name=", propName, "type=", varType
if propName not in self.data:
if errorLog:
hr = 0x80070057
exc = pythoncom.com_error(0, "Bag.Read", "no such item", None, 0, hr)
errorLog.AddError(propName, exc)
raise exception.Exception(scode=hr)
return self.data[propName]
def Write(self, propName, value):
print "write: name=", propName, "value=", value
self.data[propName] = value
class Target:
_public_methods_ = [ 'GetClassID', 'InitNew', 'Load', 'Save' ]
_com_interfaces_ = [ pythoncom.IID_IPersist,
pythoncom.IID_IPersistPropertyBag ]
def GetClassID(self):
raise exception.Exception(scode=0x80004005) # E_FAIL
def InitNew(self):
pass
def Load(self, bag, log):
print bag.Read('prop1', VT_EMPTY, log)
print bag.Read('prop2', VT_EMPTY, log)
try:
print bag.Read('prop3', VT_EMPTY, log)
except exception.Exception:
pass
def Save(self, bag, clearDirty, saveAllProps):
bag.Write('prop1', 'prop1.hello')
bag.Write('prop2', 'prop2.there')
class Log:
_public_methods_ = [ 'AddError' ]
_com_interfaces_ = [ pythoncom.IID_IErrorLog ]
def AddError(self, propName, excepInfo):
print "error: propName=", propName, "error=", excepInfo
def test():
bag = Bag()
target = Target()
log = Log()
target.Save(bag, 1, 1)
target.Load(bag, log)
comBag = util.wrap(bag, pythoncom.IID_IPropertyBag)
comTarget = util.wrap(target, pythoncom.IID_IPersistPropertyBag)
comLog = util.wrap(log, pythoncom.IID_IErrorLog)
comTarget.Save(comBag, 1, 1)
comTarget.Load(comBag, comLog)
if __name__ == '__main__':
test()