vb_continuous_file_get_pretrigger

 return pretrigger length(sample)
 [USAGE]
    [pretrigger_len] = vb_continuous_file_get_pretrigger(obj);
 [IN]
    obj : continuous_file object.
 [OUT]
    pretrigger_len : pretrigger length(sample)

 Copyright (C) 2011, ATR All Rights Reserved.
 License : New BSD License(see VBMEG_LICENSE.txt)

0001 function [pretrigger_len] = vb_continuous_file_get_pretrigger(obj)
0002 % return pretrigger length(sample)
0003 % [USAGE]
0004 %    [pretrigger_len] = vb_continuous_file_get_pretrigger(obj);
0005 % [IN]
0006 %    obj : continuous_file object.
0007 % [OUT]
0008 %    pretrigger_len : pretrigger length(sample)
0009 %
0010 % Copyright (C) 2011, ATR All Rights Reserved.
0011 % License : New BSD License(see VBMEG_LICENSE.txt)
0012 
0013 %
0014 % --- Previous check
0015 %
0016 if ~exist('obj', 'var')
0017     error('obj is a required parameter.');
0018 end
0019 
0020 %
0021 % --- Main Procedure
0022 %
0023 pretrigger_len = meginfo_get_pre_trigger(obj.MEGinfo);
0024 if isempty(pretrigger_len)
0025     pretrigger_len = 0;
0026 end