hist_length_buffer

Parameters

Returns

The number of X-Y data pairs, an integer-valued number.

Description

This function returns the number of X-Y pairs in a buffer previously obtained by the hist_buffer_id_read function. This function is similar to the hist_buffer_id_length function, but saves an unnecessary exchange with the Cascade Historian when the data has already been retrieved once.

This function corresponds in part to the bufferIdLength command and the Cogent C API function HI_BufferIDLength.

Example

count = hist_length_buffer(buf);