The compiler complains that it can't find the externals _SCAN_Op or _SCAN_Demux, ETC when trying to compile. I have downloaded NI-DAQ 6.1 and can't find the function library that supposedly contains them.

[EdB]

I've looked through the KnoledgeBase, etc with only a referance to the NI-DAQ function library, which I can't locate. using labwindows 2.2 and MS C/C++ V 7.0 as I am trying to modify a dos program written 9 years ago.

Windoze 98 won't run the MS C/C++ 7.0 compiler and MS Visual C++ 6.0 won't compile this old code. I have a machine running MS Windoze 95 and that does run the old compiler, etc. But I run smack into the above problem when trying to modify the code.

What now?

[Chris Matthews]

Those functions are in NI-DAQ. You have to include appropriate LIB file from NI-DAQ in your project. A MSC compatible lib file (nidaq32.lib) should be in your NI-DAQ/lib directory.

Best Regards,

Chris Matthews
Measurement Studio Supprt Manager

[EdB]

Thank You for your time and effort.
I have the C:\NI-DAQ directory but do not have the C:\NI-DAQ\lib directory installed.
Why? I don't know. What am I doing rong in installing NI-DAQ 6.1 that it isn't there?

[Chris Matthews]

I don't remember the specifies of NI-DAQ 6.1 installation. It sounds like you don't have CVI or C support installed for NI-DAQ. When you install NI-DAQ it will have check boxes for the development environments you want support for. Reinstall DAQ and check 3rd party compilers and LabWindows/CVI.

Best Regards,

Chris Matthews

[Paul Rocca]

EdB wrote in message
news:506500000008000000E3170000-984882144000@quiq.com...
> The compiler complains that it can't find the externals _SCAN_Op or
> _SCAN_Demux, ETC when trying to compile. I have downloaded NI-DAQ 6.1
> and can't find the function library that supposedly contains them.
>
> I've looked through the KnoledgeBase, etc with only a referance to the
> NI-DAQ function library, which I can't locate. using labwindows 2.2
> and MS C/C++ V 7.0 as I am trying to modify a dos program written 9
> years ago.
>
> Windoze 98 won't run the MS C/C++ 7.0 compiler and MS Visual C++ 6.0
> won't compile this old code. I have a machine running MS Windoze 95
> and that does run the old compiler, etc. But I run smack into the
> above problem when trying to modify the code.
>
> What now?

Do you want your program to run under windows or DOS?

I'm not certain (someone from NI probably knows) but the last version of
NI-DAQ for DOS was ver 4.8.0, but (and its a big but) the last version of
NI-DAQ that supported LW-DOS was 4.6.1

I think its possible that some of the names of functions have changed since
back then (possibly that first underscore wasn't there)

I'll check out a couple of our old LW programs and have a look at the NI-DAQ
functions we used back then.

Best Wishes

paulr


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[EdB]

Dr Rocca:
Thank you for your time and effort and your offer of help.
As it turns out I hound that if i boot the development system from the win 98 startup disk every thing works well. When I asked this question I had tried using a dos window in win 98 nd booting into windows 98 command line mode. Both of which gave the compiler errors. Why did the startup disk work: i do not know.

Thanks again

Ed B.