Returns: Current clipboard text
This returns the text currently within the clipboard. If there is non-text data in the clipboard ( such as a picture ), it will return a sequence with the word data inside of it.
This removes the current text in the clipboard and inserts the user-defined text in it's place.
On platforms supporting it (currently only GTK), selects the so called PRIMARY SELECTION as the clipboard as opposed to the normal clipboard, if primary is true.