The task pointer to the Cascade Historian program.
An optional buffer containing an error message.
The length in bytes of retbuf. If retbuf is non-NULL, this must be a valid non-zero length. If retbuf is NULL, this parameter is ignored.
A globbing pattern specifying a group of histories.
ST_OK on success. Otherwise ST_ERROR, and the retbuf will contain a NULL-terminated character string with an error message. If the return value is ST_OK, the retbuf may not contain useful information.
This function reverses the effect of a previous disable, hist_disable, or HI_Disable call, so that new data values will be accepted and logged.
This function corresponds to the Cascade Historian enable command and the hist_enable dynamic library function.