Retrieves the list of group names of the bookmark for uri.
In the event the URI cannot be found, null is returned and throws is set to URI_NOT_FOUND.
The returned array is null terminated, so return
.length may optionally be null.
| this | |
| uri |
a valid URI |
| length |
return location for the length of the returned string, or null |
|
a newly allocated null-terminated array of group names. Use strfreev to free it. |