This appears to be a known problem; at least, I found the same
question here and there using Google, but no answers. I thought it
might be possible to use NSWorkspace, but it appears to have the same
problem. What does appear to work is to ask the Finder via Apple
script. Create a script called, say, "isVolumeEjectable" and
implement it as follows.
on run {volumeName}
tell application "Finder"
return ejectable of disk volumeName
end tell
end run
Then call it like so.
For i as Integer = 0 to VolumeCount - 1
dim v as Variant = IsVolumeEjectable(Volume(i).Name)
Next
This script returns true for a mounted Firewire volume on my machine,
and agrees with the result of calling PBHGetVolParmsSync for all
other volumes mounted here.
Probably you could also try calling IOKit :)
Charles Yeomans
On May 29, 2006, at 3:52 PM, Dennis Birch wrote:
I implemented the suggested declares solution in a module and it works
great for CD-ROMs and USB devices I've mounted. However my external
FireWire drive (which can be safely unmounted in the Finder) does not
show as being ejectable. Anybody happen to know why that might be the
case?
On 5/23/06, Charles Yeomans <charles at declaresub dot com> wrote:
This information is not hard to retrieve for MacOS. You call
PBHGetVolParmsSync. You test the extended attributes field of the
GetVolParmsInfoBuffer struct passed. The volume is ejectable when
bit 0 is set. The Volumes section of chapter 4 of my declares book
has an example that calls PBHGetVolParmsSync.
_______________________________________________
Unsubscribe or switch delivery mode:
<http://www.realsoftware.com/support/listmanager/>
Search the archives of this list here:
<http://support.realsoftware.com/listarchives/lists.html>
|