request_contents

Description:

public void request_contents (Atom target, ClipboardReceivedFunc callback)

Requests the contents of clipboard as the given target.

When the results of the result are later received the supplied callback will be called.

this	a Clipboard
target	an atom representing the form into which the clipboard owner should convert the selection.
callback	A function to call when the results are received (or the retrieval fails). If the retrieval fails the length field of `selection_data` will be negative.
user_data	user data to pass to `callback`