>> The main test which AJ suggested would be to 'force' native user32 to >> call RegisterClassNameW. There would be a dummy dll containing a >> RegisterClassNameW to which lets say the Button control would be >> redirected using a manifest. > > If I got it right you're talking about a dummy dll with compiled in (or > separate doesn't matter) manifest with > 'windowclass' entry (and without to check it's actually used) to Button, > after that we trigger test application reload > and dump this RegisterClassNameW call someway? >
Yeah that's the idea. I'm quite certain that this mechanism is used to register the class. I just searched some more this morning and found stuff I didn't fnd before about subclassing. Read this http://msdn.microsoft.com/en-us/library/bb773183%28VS.85%29.aspx It talks about four new subclassing related functions which were introduced in XP, so it might mean that the controls are subclassed after all? Roderick
