[Qt-interest] Qt 4.6 on OSX - choosing between carbon and cocoa versions?

[Daniel Price]

Thank you for the info!

Do you have the URLs for both installers? I couldn't find them.

Also is there a reason the mac installers prevent you from installing multiple versions of qt? I wanted to keep my 4.5.3 installation but the installer didn't give me a choice. This isn't an issue on windows or linux.

>From what you've explained, if I want both the carbon and cocoa installations, I'll have to build Qt myself (not a fun prospect).

> -----Original Message-----
> From: qt-interest-bounces at trolltech.com [mailto:qt-interest-
> bounces at trolltech.com] On Behalf Of Richard
> Sent: 02 December 2009 13:57
> To: qt-interest List
> Subject: Re: [Qt-interest] Qt 4.6 on OSX - choosing between carbon and
> cocoa versions?
>
>
> > I assume that the Cocoa version of Mac-qt is identical in function
> > to the carbon version except that it can be built for 64bit, right?
>
> Correct! But if you need to target Mac OS 10.4 (and ppc), you need to
> use the Carbon version. If you need 64-bit support, you need to use
> the Cocoa version. If you need both 64-bit and Mac OS 10.4/ppc
> support, you must either ship two different versions of your
> applications, or build Qt from sources yourself (and specify the
> needed configurations to the configure script, e.g. ./configure -arch
> x86 -arch ppc -arch x86_64, which will give you cocoa 64-bit, and
> carbon 32-bit and carbon ppc 32-bit).
>
> > I ran the installer using the default options - does that mean it
> > installed both versions? If so, how do I choose which version to
> > link against in my projects?
>
> The Qt-4.6.0 package contains either the cocoa port or the carbon port
> of Qt, not both. So it depends on which package you downloaded. The qt-
> mac-cocoa-opensource-4.6.0.dmg will be the cocoa port. If you build Qt
> from sources, you can specify which configuration to use from within
> the project file (.pro), e.g. CONFIG += x86 x86_64 ppc (this will
> create a universal binary).
>
> >
> > Are there any significant issues outstanding in using the cocoa
> > version? I don't need it AFAIK but I would appreciate the info.
> >
>
> Accessibility is not yet implemented. ITOH, the cocoa port includes
> multi-touch and gesture support (the carbon port doesn't, unless you
> build Qt/Carbon from source on Mac OS 10.6 (the you will get
> gestures)).
>
> -Richard
>
>
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