What one call to a host history loader achieved. loaded means older bars
reached the chart; empty means the windows it inspected held none, though
older history may still exist; exhausted means the source has nothing
older; limited means a retention limit stopped it; unavailable means
history cannot load now (no loader, replay, a paused source).
What one call to a host history loader achieved.
loadedmeans older bars reached the chart;emptymeans the windows it inspected held none, though older history may still exist;exhaustedmeans the source has nothing older;limitedmeans a retention limit stopped it;unavailablemeans history cannot load now (no loader, replay, a paused source).