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Counter Example
by Scott Hirsch
An example using generic dll calling to use the counter on an NI daq card.
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| loadNIcns(filename);
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function param = loadNIcns(filename);
% Copyright 2002-2004 The MathWorks, Inc
if nargin==0
[filename,pathname] = uigetfile('nidaqcns.h','Please find nidaqcns.h');
filename = [pathname filename];
end;
% filename = 'D:\Applications\National Instruments\NI-DAQ\Include\nidaqcns.h';
fid = fopen(filename,'r');
%Read in the file
nlines = 0;
L = {}; %The lines
while 1
fline = fgetl(fid);
if ~ischar(fline), break, end
if strncmp(fline,'#define ND',10)
nlines = nlines+1;
L{nlines} = fline;
end;
end;
fclose(fid);
%Now, define the variables. Store them all in a structure
for ii=1:nlines
%I catch all the longs. enum's are skipped
try
[name,val] = strread(L{ii},'#define %s %dL');
param.(name{1}) = val;
catch
end;
end;
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