II. Dynamic Library Functions

Table of Contents
hist_access_buffer -- accesses buffer elements using array-like syntax.
hist_buffer2array -- generates an array from a binary buffer of historian data.
hist_buffer_id_destroy -- destroys an interpolation query buffer.
hist_buffer_id_length -- queries for the number of X-Y pairs.
hist_buffer_id_read -- reads a buffer of data from the Cascade Historian.
hist_bufsize -- sets the history buffer size.
hist_clip_buffer -- clips Y values to fit within a range.
hist_count -- counts the number of histories that match a pattern.
hist_deadband -- sets the history value deadband.
hist_delete -- removes a history from memory only.
hist_describe -- describes a history's current configuration.
hist_disable -- stops data recording.
hist_earliest -- gives the earliest value in a history
hist_enable -- activates data recording.
hist_exchange_buffer -- swaps X and Y values.
hist_filebase -- associates the history with a file for data storage.
hist_flush -- writes buffered data to disk.
hist_gap_buffer -- identifies and fills gaps in data that are too large for interpolation.
hist_history -- creates a new history.
hist_interpolate -- queries history data.
hist_interpolate_data -- interpolates a history and returns data.
hist_latest -- gives the latest value in a history
hist_length -- finds the total number of values in a history.
hist_length_buffer -- returns the number of X-Y pairs.
hist_list -- finds the name of available histories.
hist_register -- registers histories with the Cascade DataHub.
hist_scale_buffer -- performs offset and scaling operations.
hist_stat_buffer -- generates summary statistics on Y-values.
hist_unregister -- unregisters histories with the Cascade DataHub.
hist_version -- gets the version number of the Cascade Historian.

Copyright 1995-2002 by Cogent Real-Time Systems, Inc.