Re: [MacPerl] Using Mac:: '...' Modules

[Chris Nandor <pudge@pobox.com>]

At 16.09 -0500 1999.03.25, Mark Yannuzzi wrote:
>> So essentially:
>>
>> DEFAULTLOCATION is just a path.  I believe it is converted to an AEDesc for
>> you.
>
>If you pass a null string, the dialog opens with the last visited location.

Right.  I was just pointing out that the docs for Nav Services says you
need to pass an AEDesc, and apparently the module coverts it to an AEDesc
for you.


>> DIALOGOPTIONS is a data structure object (a good way to start is with
>> NavGetDefaultDialogOptions) that is changed with:
>>
>>    $options->somefield($somedata)
>
>Would this be true for the NavDialodOptionsFlags also?  I can see that for
>setting the option you might use:
>
>  $options->dialogOptionFlags(kNavSelectAllReadableItem)
>
>but how would you reset it?

I think for setting it, it would be more like:

  $flags = $options->dialogOptionFlags;
  $flags |= kNavSelectAllReadableItem;
  $options->dialogOptionFlags($flags);

method(value) actually sets it to the value, it does not add a value.  You
could probably "shorten" it with:

  $options->dialogOptionFlags
    ( $options->dialogOptionFlags() | kNavSelectAllReadableItem );

And to reset it, maybe:

  $options->dialogOptionFlags(kNavDefaultNavDlogOptions);

None of the above code is tested, caveat scriptor.

Oops, I just wrote this and saw you figured it out.  :)


>A few questions:
>
>1) I assume that you must supply an event handling procedure to get the
>window title bar to display.  Is this correct?

I don't know.


>2) I wanted to pull the filter procedure outside the NavGetFile call, but
>when I did (defining it before the call), I get the following error:
>
>  # Can't call method "fileInfo" without a package or object reference.
>
>Since it I thought that Mac:: packages exported there types and functions,
>this was a surprise error. I tried adding Mac::Navigation::, but got the
>same error.  Should it be possible to define the FILTERPROC subroutine
>outside the NavGetFile function?

Did you use Mac::Files?  If so, I don't know what the problem would be.
That's where the fileInfo structure is from.


>3) I have discovered that the second element ($_[2]) passed by NavGetFile to
>the FILTERPROC appears to be the filterMode variable (NavFilterModes type),
>which is "...a list of objects currently being filtered."  How would one use
>this, as it appears that it is not necessary for one to check that the
>Browser list (kNavFilteringBrowserList = 0) is currently being filtered
>before the filter is applied?

I don't know.  I didn't use it for anything, and didn't find it necessary.
Though if you find a need for it, I am sure we can figure out how to use
it.  :)

--
Chris Nandor          mailto:pudge@pobox.com         http://pudge.net/
%PGPKey = ('B76E72AD', [1024, '0824090B CE73CA10  1FF77F13 8180B6B6'])

===== Want to unsubscribe from this list?
===== Send mail with body "unsubscribe" to macperl-request@macperl.org