What effects (if any) do os signals (eg. SIGABRT, SIGBREAK, SIGFPE, etc) have on nidaq functions?

I am attempting to catch and handle any break or terminate signals, so that I can properly clean up before exitting. The signal handling itself works - that is I hit ctrl-c during the program, and the signal function begins to execute, but the program dies as soon as I call the first cleanup function (DAQ_Clear()). I have no idea why DAQ_Clear dies at this point. It works ok otherwise.
Windows 2000 Pro
Celeron 600
128Mb RAM
nidaq 6.9

I have not programmed such error handling for DAQ operations before, but this is something I'd like to research a bit.
Can you tell me what you mean by "the program dies"? Does it freeze, return some error code, or crash with a fatal error?
Raecine Meza
Applications Engineer
National Instruments
http://www.ni.com/ask

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Message was edited by: Patrick Murphy

Sorry, no feedback on this yet. I was hoping someone else would have already tried a booster or repeater or whatever they are, and post a comment about them here. We went to the ATT store in Pismo Beach and stood there for fifteen minutes waiting for someone to help us and then left. Two doors down there is a Radio Shack, and although these antennas are listed in their online catalog, the two guys who were working there didn't have a clue. Actually, Radio Shack was kind of a funny experience because one of the guys just said "we don't have any" and then just walked away from us to return to the movie he was watching on the large screen TV across the store. I swear!
Then, we went to another ATT store located on the south side of Santa Maria and we finally got a guy who not only knew what we were talking about, but was actually helpful. Though they didn't have any antennas for us at the store, he discussed the effectiveness of antennas with us, and was truthful enough to tell us that the information he was relating to us was just information he had heard from his friends, but that he had no personal experience with using these antennas.
Anyway, one of the posts at the top of this thread lists a site to check out, and it seems to have most of the brands we heard about in our search. It appears that they run in the neighborhood of $300 for a good one, and you can spend up to about $1,000 for one of the best models available.
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What effects (if any) do os signals (eg. SIGABRT, SIGBREAK, SIGFPE, etc) have on nidaq functions?

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