This example illustrates how to open a file and read the description of the first channel.
local int fp
local string description
fp = DBOpen( GetPCIHOME() + "/demo/irvine.pix" )
description = DBReadChanDesc( fp, 1 )
call DBClose( fp )
print description
0.485um +/- 0.035um TM band 1: blue-green
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