Getdatasize; Getreference - JDS Uniphase SWS15100 User Manual

Function Description
Return Value When there is no error, the function returns zero.
When there is an error, the return value contains the error number.

getDataSize

Function Description
Purpose The getDataSize function retrieves the number of data points in the trace from
the start wavelength to the maximum wavelength defined by LambdaMax in the
SWS15100.INI file.
C prototype int getDataSize( );
VB prototype Declare Function getDataSize Lib "SWS15100" () As Long
Input None
Output None
Return Value When there is no error, the function returns the length of the data array or the
number of data points from the start wavelength to the maximum wavelength.
When there is an error, the return value contains the error number (is
negative).

getReference

Function Description
Purpose The getReference function acquires a new reference for the specified channel.
The polarization of the new reference is stored in the variable pola. This
function is called after the user acquires raw data through a call to the
triggerTrace and isTraceDone functions, with the setup for channel reference
measurement in place.
C prototype int getReference( unsigned short chID, short *pola );
VB prototype Declare Function getReference Lib "SWS15100" (ByVal chID%, ByRef pola%)
As Long
Input unsigned short chID:
This is the channel ID to be referenced.
short *pola:
Variable pola contains the polarization of the new reference.
Output None
Return Value When there is no error, the function returns zero.
When there is an error, the return value contains the error number.
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Programming Guide – 133