Re: How to release Cocoa objects from Perl? (PerlObjCBridge or CamelBones)
Re: How to release Cocoa objects from Perl? (PerlObjCBridge or CamelBones)
- Subject: Re: How to release Cocoa objects from Perl? (PerlObjCBridge or CamelBones)
- From: Stephen Sample <email@hidden>
- Date: Fri, 7 Oct 2005 11:06:57 -0400
On Oct 6, 2005, at 3:12 PM, Sherm Pendley wrote:
On Oct 6, 2005, at 8:39 AM, Stephen Sample wrote:
But looking at the examples for CamelBones (and any other
tutorials online), I can't figure out how to release the memory
for the Cocoa objects from within Perl. My case is somewhat
different in that I don't have a UI, and so I'm basically running
a straight Perl.
Use CamelBones from command-line tools is a relatively recent
addition - which is why this has escaped testing until now.
No problem. I'm sort of reassured that it's not just me ;-)
I've tried the Cocoa-style
$cocoaObjectName->release;
but that gives me an error of
perl[5912] Unknown return type Vv
Vv is the type encoding for "oneway void", which is the declared
return type for -release. Sure enough, that's not supported yet.
It'll be trivial for me to add support for it, certainly - it's
void, so there's nothing to support. ;-)
It'll take me a day or so to patch the code and make a release.
Great, thanks!
In the meantime, I found a workaround that at least doesn't blow up--
splitting the scale subroutine into another Perl program and calling
it with system() lets Perl clean the memory up properly. It's not
elegant, but it lets me go on with the rest of the testing.
Oh, and BTW, in case anyone else runs into this, it looks like enum
values don't get carried through from Cocoa to Perl via CamelBones.
If I try compressing an image to JPEG using
$scaledNSBitmapImageRep->representationUsingType_properties
(NSJPEGFileType,$compressionSettings);
I get a TIFF. But if I use the
my $outputJPEGData = $scaledNSBitmapImageRep-
>representationUsingType_properties(3,$compressionSettings);
(where 3 is the position of NSJPEGFileType in the enum), I get a JPEG.
Not a big deal, but I thought it might save someone some debugging if
I mentioned it.
Ta,
-Stephen
-----------------------------------------
Stephen Sample, NPPA Web Developer
+919/383-7246 x11, <email@hidden>
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