gtk:clipboard-wait-for-targets (clipboard targets n-targets)

clipboard -- a gtk:clipboard object
targets -- location to store an array of targets. The result stored here must be freed with the g:free function
n-targets -- location to store the number of items in targets

True if any targets are present on the clipboard, otherwise false.

Returns a list of targets that are present on the clipboard, or nil if there are not any targets available. 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.