Issues a request to the clipboard manager to store the clipboard data.
On X11, this is a special program that works according to the FreeDesktop Clipboard Specification.
| this |
a Display |
| clipboard_window |
a Window belonging to the clipboard owner |
| time_ |
a timestamp |
| targets |
an array of targets that should be saved, or null if all available targets should be saved. |
| n_targets |
length of the |