Oliver T. Nelson wrote: > Some of you may have read this post over on the forums or wx mailing > list, I'm hoping I can find someone that has gone through this problem > already. Canceling this event in other languages seems to work just > fine, but in python it doesn't work. > > The IDL for the function is: > > void BeforeClick(long Button, long Shift, long X, long Y, bool* Cancel) > > Based on this I've tried canceling the event by: > > return 0, True > > So that the byref cancel param gets set to true which should cancel the > click event (works in c#). > > I've tried working with the calendar control and have successfully > canceled the BeforeUpdate event using the same line. The only > difference I can see between the two is that the calendar control is > using a short for the cancel param while mappoint is using a bool. I'm > using early binding btw. >
The list of types that are valid in an IDL file to be used with COM automation is very limited; the C++ "bool" type is not on that list. If this were an IDL that you controlled, you could change it to "long *". The MIDL spec defines a "Boolean" type, but that's an 8-bit type that isn't compatible with COM automation. http://msdn2.microsoft.com/en-us/library/aa367090.aspx If this is really an IDL that shipped with MapPoint, then I'd call that a Microsoft bug. -- Tim Roberts, [EMAIL PROTECTED] Providenza & Boekelheide, Inc. _______________________________________________ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
