Re: ATTR_CMN_CHGTIME
Re: ATTR_CMN_CHGTIME
- Subject: Re: ATTR_CMN_CHGTIME
- From: "James W. Walker" <email@hidden>
- Date: Sun, 21 Mar 2010 17:28:24 -0700
On Mar 21, 2010, at 4:20 PM, Ron Fleckner wrote:
> On 22/03/2010, at 10:01 AM, gMail.com wrote:
>
>> Hi,
>> I cannot find a Cocoa API to set the "Attribute Modification Date" of a
>> file. If there is a way, may you please let me know?
>>
>> In the meantime, on MacOS X 10.5.8, I have been trying to use setattrlist
>> with ATTR_CMN_CHGTIME, unsuccessfully. And setattrlist returns 0, as
>> everything went ok. While it is not ok. Even FSSetCatalogInfo with
>> kFSCatInfoAttrMod doesn't work. I get the current date/time I call the API,
>> not the date/time I have set.
>>
>> So my question is:
>> Can I really set the ATTR_CMN_CHGTIME on MacOS X 10.5.8 or higher?
>>
>> Also, the man says that getattrlist and setattrlist don't work on all the
>> volumes. So, how can I know whether I can call these APIs?
>>
>>
>> Thanks
>> --
>> Leonardo
>
> the Cocoa way, I suppose, is to use NSFileManager. Looks like you can use setAttributes:ofItemAtPath:error: with an NSDate value for NSFileModificationDate.
He's asking for the attribute modification date, not the (content) modification date attribute. That is, the last time the attributes of the file were changed, without necessarily changing the contents of the file.
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