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Rank: Member
Groups: Member
Joined: 7/7/2010
Posts: 11
Location: France
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Hello everyone ! I'm posting this topic because I would like to make a tag search using PI-API. What functions am I suppose to use (with parameters) and how I get a list of tags giving a key-word ? Thanks a lot in advance for your answers and comments !  Vana
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Rank: Administration
Groups: Administration
Joined: 6/20/2008
Posts: 617
Location: Cheshire, United Kingdom.
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Hi Vana, In PIAPI you would use the "pipt_wildcardsearch" function. First you pass 0 for the direction parameter with your tag mask and see how many tags you get returned. Then you pass 1 as the direction, for the number of tags that were found (the numfound parameter). In PISDK you can use the "GetPoints" or "GetPointsSQL" of a PI Server object to search for tags, which is much simpler to implement. Principal Consultant
Real-Time Data Management @ Wipro Technologies
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Rank: Member
Groups: Member
Joined: 7/7/2010
Posts: 11
Location: France
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Thanks a lot RJK Solutions ! I'll try this !!!  Have a nice day !
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Rank: Member
Groups: Member
Joined: 7/7/2010
Posts: 11
Location: France
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Hi RJK Solutions !!! Actually, I get in trouble with the function pipt_wildcardsearch. As you told me, I passed 0 as direction to get the number of tags matching the tag mask. So that I got the first tag. Then I passed 1 as direction with the numberfound previously so I got the second tag. I didn't manage to find out how I can get the next tags from 3 until the numberfound. Thanks a lot for helping or giving any clue !! 
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Rank: Administration
Groups: Administration
Joined: 6/20/2008
Posts: 617
Location: Cheshire, United Kingdom.
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From memory (I would need to test) don't you just continue to pass "1" as the direction to cycle through to the end of the list? Principal Consultant
Real-Time Data Management @ Wipro Technologies
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Rank: Member
Groups: Member
Joined: 7/7/2010
Posts: 11
Location: France
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Hi and thanks for the reply. I had already tested it and I got a segmentation fault :( I don't know what I am doing wrong...  As you propose, it would be really helpfull if you could test it. Have a nice day ! Vana
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