gtk:clipboard-wait-for-contents (clipboard target)

clipboard -- a gtk:clipboard object
target -- a string representing the form into which the clipboard owner should convert the selection

The newly allocated gtk:selection-data instance or nil if retrieving the given target failed.

Requests the contents of the clipboard using the given target. This function waits for the data to be received using the main loop, so events, timeouts, and so on, may be dispatched during the wait.