Hi,
Looking at the CGWindowLevel.h header of the CoreGraphics framework:
enum {
kCGBaseWindowLevelKey = 0,
...
kCGDesktopIconWindowLevelKey,
...
#define kCGDesktopIconWindowLevel \
CGWindowLevelForKey(kCGDesktopIconWindowLevelKey)
$ ./miniruby -e "framework 'Cocoa'; p KCGDesktopIconWindowLevel"
/Users/lrz/src/macruby-trunk/-e:1:in `<main>': uninitialized constant
KCGDesktopIconWindowLevel (NameError)
$ ./miniruby -e "framework 'Cocoa'; p KCGDesktopIconWindowLevelKey"
18
It looks like the bridge support generator was not able to handle this #define
notation. If you file a bug using http://bugreport.apple.com we can try to
address this problem in a next version of Mac OS X.
In the meantime, a workaround is to use
CGWindowLevelForKey(KCGDesktopIconWindowLevelKey)
as you already figured out :-)
HTH,
Laurent
On Apr 24, 2010, at 3:51 AM, Michel Steuwer wrote:
> Hi,
>
> I didn't find out how to use the kCGDesktopWindowLevel directly, but you can
> use the kCGDesktopWindowLevelKey constant if you use a capital K at the
> beginning.
> So the call:
>
> window.setLevel(CGWindowLevelForKey(KCGDesktopWindowLevelKey))
>
> works.
>
> I looked at the CoreGraphics.bridgesupport in
> /System/Library/Frameworks/ApplicationServices.framework/Frameworks/CoreGraphics.framework/Resources/BridgeSupport
> and it only provides the constant kCGDesktopWindowLevelKey not
> kCGDesktopWindowLevel.
>
> Thanks for the quick respond.
>
> Michel
>
>> I've not been able to generate a Bridge Support file for the
>> AppKit.framework on my machine, but if you can then you can load the
>> framework and then load the bridge support file and you should get access to
>> those constants, I believe the k changes to K though.
>>
>> The alternative would be to define those constants in a .rb file which you
>> then require into your script.
>>
>> Geoff
>>
>> On 24 Apr 2010, at 11:09, robert gleeson wrote:
>>
>>> Hey,
>>>
>>> In Ruby, constants are identified by a capital letter at the beginning of
>>> its name, and that is why a NameError exception is raised.
>>> If this Objective-C constant is available to you, I don't think it would be
>>> available as a local variable in MacRuby.
>>>
>>> Maybe MacRuby encapsulates this data in a class somewhere - I have no idea
>>> - Sorry :-)
>>>
>>> Thanks,
>>> Rob
>>>
>>> On 24 Apr 2010, at 11:01, Michel Steuwer wrote:
>>>
>>>> Hello everybody,
>>>>
>>>> i'm new to MacRuby and currently trying my first Project.
>>>>
>>>> I try to draw a NSPanel at the desktop window level.
>>>> Therefore, i would use the [window setLevel:kCGDesktopIconWindowLevel]
>>>> method in Objective-C.
>>>> In MacRuby the call window.setLevel(kCGDesktopIconWindowLevel) doesn't
>>>> work and produces the following log message:
>>>>
>>>> undefined local variable or method `kCGDesktopIconWindowLevel' for
>>>> #<PanelController:0x2002f1ac0>
>>>>
>>>> Currently i have solved the Problem by using this work-around:
>>>> window.setLevel(CGWindowLevelForKey(2))
>>>>
>>>> Why can't i use the call with the pre defined constant as i would in
>>>> Objective-C ?
>>>>
>>>> Thanks,
>>>> Michel
>>>>
>>>> --
>>>> Michel Steuwer | [email protected]
>>>>
>>>> _______________________________________________
>>>> MacRuby-devel mailing list
>>>> [email protected]
>>>> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
>>>
>>> _______________________________________________
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>>
>> _______________________________________________
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>
>
>
> --
> Michel Steuwer | [email protected]
>
> _______________________________________________
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