Question about ToolbarWindowProc

[Eric Kohl]

"Guy L. Albertelli" <galberte at neo.lrun.com> wrote:



> 2. From looking at relay traces, Toolbar messages 0x045d and 0x0463 seem
to
> be a
> pair. They also seem to invoke comctl32.413 which is also undocumented.
The
> relay traces seem to suggest that .413 somehow redirects the message to
> another Winproc. All windows that process through .413 seem to have the
atom
> for "CC32SubClassInfo" added as a property (GetProp/SetProp). I suspect
that
> this whole thing may be related to the "nativefont" control. There seems
to
> be no ill-effect to the messages not being implemented (except for the
> annoying fixme).  Note that comctl32.413 may also be related to
comctl32.410
> and .412.

IMO, the undocumented functions comctl32.410 to comctl32.413 are some kind
of a subclass manager. They seem to be the functions DefSubclassProc(),
SetWindowSubclass(), GetWindowSubclass() and RemoveWindowSubclass() which
are documented in the new Windows XP Platform SDK.


Regards,

Eric Kohl