public void request_uris (ClipboardURIReceivedFunc callback)
Requests the contents of the clipboard as URIs.
When the URIs are later received
callback will be called.
uris parameter to
callback will contain the resulting array of URIs if the request succeeded, or
null if it failed. This could happen for various reasons, in particular if the clipboard was empty or if the
contents of the clipboard could not be converted into URI form.
a function to call when the URIs are received, or the retrieval fails. (It will always be called one way or the other.)
user data to pass to