Re: High Level Toolkit -- is it obsolete or not?
Re: High Level Toolkit -- is it obsolete or not?
- Subject: Re: High Level Toolkit -- is it obsolete or not?
- From: Eric Schlegel <email@hidden>
- Date: Mon, 22 Feb 2010 23:15:03 -0800
On Feb 22, 2010, at 11:53 AM, Joel May wrote:
> I would like to create a thread (NSThread) with a bumped-up priority and poll the mouse and keyboard the same way I did in the carbon version. I'd like to use the cocoa equivalents of GetButton() and GetKeys() but I can't find them.
GetButton() [by which I think you actually mean Button()] - the Cocoa equivalent is +[NSEvent pressedMouseButtons], available in 10.6 and later
GetKeys() - I don't believe there is currently a Cocoa or CoreGraphics equivalent (but could be wrong!). It's perfectly fine to continue using GetKeys().
> Am I safe using these api's. Are we supposed to not use them?
You are safe using these APIs. They are still supported. We recommend that you use Cocoa equivalents when available - so you could use +[NSEvent pressedMouseButtons] on 10.6 and later, and Button() on 10.5 and earlier.
> Will they go away in 10.7?
No, because that would break many existing applications, and we place a high priority on not breaking existing applications.
> Why do I read everywhere that carbon is dead and high level toolkit is dead?
Because many people are misinformed. Apple no longer recommends Carbon for new application development - Cocoa is recommended for all new development - but Carbon is not being removed from the OS either, because that would break existing applications. The High Level Toolbox APIs will continue to be supported for 32-bit apps and some parts of HLTB will also still be supported for 64-bit in cases where there is no other 64-bit equivalent.
> If High Level Toolkit is ok, then why doesn't it appear in the docs. If I search the Mac OS X Reference Library, it does not get the same treatment that the cocoa api gets.
You'd have to ask Apple Developer Relations about that. I'm just a grunt engineer. :)
-eric
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