gdk-frame-clock-history-start (frame-clock)

frame-clock -- a gdk-frame-clock object

The unsigned integer frame counter value for the oldest frame that is available in the internal frame history of the frame clock.

The frame clock internally keeps a history of gdk-frame-timings objects for recent frames that can be retrieved with the function gdk-frame-clock-timings. The set of stored frames is the set from the counter values given by the function gdk-frame-clock-history-start and the function gdk-frame-clock-frame-counter, inclusive.