[pywin32-bugs] [ pywin32-Patches-3612570 ] Determine type of interface

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Patches item #3612570, was opened at 2013-05-03 06:51
Message generated for change (Comment added) made by mhammond
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Category: None
Group: None
>Status: Closed
>Resolution: Wont Fix
Priority: 5
Private: No
Submitted By: Stefan Schukat (sschukat)
Assigned to: Nobody/Anonymous (nobody)
Summary: Determine type of interface 

Initial Comment:
If you are using dynamic dispatch you cannot determine the type of an interface in an easy way. This patch adds two methods which returns the name of the interface of an dynamic object. With this a basic type check could be done for an interface.

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>Comment By: Mark Hammond (mhammond)
Date: 2013-05-05 18:13

Message:
I'm not that keen on this.  In general, I don't see there is demand for
these functions (eg, I don't recall ever seeing a mailing-list question
asking how this might be done, there seems nothing in pywin32 itself which
would want to use it, and I've never personally come across the need for
it).  Regarding the code itself:

* New code should use pep8
* GetComIdentity() is a misleading name - the "identity" of a COM object is
defined as the address of the pointer returned by a QI for IUnknown, so
people familiar with COM will possibly be confused. 
GetDefaultInterfaceName would seem a better choice if this was to be
implemented at all.
* IsTypeOf() seems misleading - if I already have an object which has been
QI'd to the non-default interface, it seems the function will return False
when passed that interface name.

If these make sense to your app/toolkit, they should probably be defined in
your app/toolkit.

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