Re: kHIViewWindowContentID kind not in headers?

• Subject: Re: kHIViewWindowContentID kind not in headers?
• From: Tomas Zahradnicky <email@hidden>
• Date: Thu, 19 Jan 2006 01:03:15 +0100
• Delivered-to: email@hidden
• Delivered-to: email@hidden

Hi Eric,

I'm using HIViewGetKind function to find out the kind of various HIViews and noticed that kHIViewWindowContentID's kind 'cnvw' is not in the headers.

The intention is that you just use the constant "kHIViewWindowContentID", and don't use the actual four-char code. In theory, that would let us change the four-char code if necessary. In practice, that's virtually impossible, because apps probably hardcode the four-char code at times. We'd still discourage doing that, though.

If I use the following method I get appl/upan:

    GetRootControl( GetControlOwner( hiView ), &rootControl );
    err = GetControlData( rootControl,
                          kControlEntireControl,
                          kControlKindTag,
                          sizeof(ControlKind),
                          &ck,
                          &size);

SIZE IS SET TO NONSENSE. BUG!
---------------------------------------
This method gives appl/cnvw:

        HIViewFindByID( HIViewGetRoot(HIViewGetWindow(hiView)),
                        kHIViewWindowContentID,
                        &contentViewRef );

    err = GetControlData( contentViewRef,
                          kControlEntireControl,
                          kControlKindTag,
                          sizeof(ControlKind),
                          &ck,
                          &size);

SIZE IS SET TO 8. OK!
----------------------------------------
This method gives appl/cnvw as well:

        HIViewFindByID( HIViewGetRoot(HIViewGetWindow(hiView)),
                        kHIViewWindowContentID,
                        &contentViewRef );

  err = HIViewGetKind( contentViewRef, &contentViewKind );
----------------------------------------

Thanks,

  Tomas
--
# Ing. Tomas Zahradnicky, Jr.
# The Czech Technical University
# Dept of Computer Science, FEE-CTU Prague
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