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Rank: Member
Groups: Member
Joined: 6/10/2010
Posts: 16
Location: UK
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Hello evey body!
i am new in PI system so i need a little bit help!!
How can use or connect pi api to c# application and how can i call a function?
I tried with dllimport but it doesn`t work!
So please help!
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OSIsoft vCampus is a subscription-based, online offering that consists of providing everything people need to develop applications on the PI System. We invite you to take a "tour" of the OSIsoft Virtual Campus - also feel free to consult the FAQ or contact OSIsoft vCampus for more details.
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Rank: Administration
Groups: Administration
Joined: 6/20/2008
Posts: 617
Location: Cheshire, United Kingdom.
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Hi Maxim, Welcome to the forum! Is there a particular reason why you are using PI-API instead of PISDK? You need a different licence from OSI to program using PI-API in your own applications over PI-API. (I will dust off my PI-API .Net application examples...) Cheers, Rhys. Principal Consultant
Real-Time Data Management @ Wipro Technologies
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Rank: Member
Groups: Member
Joined: 6/10/2010
Posts: 16
Location: UK
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Hello!
Thanks for quick responding! So i am started to learn PI System so i decided you know to learn all about system!
So if i understand right api is included in sdk?
About license i have full!
anywhere do you have somethign or Are you remember how to connect to api?
and another question is there some examples application in c# or code?
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Rank: Administration
Groups: Administration
Joined: 6/20/2008
Posts: 617
Location: Cheshire, United Kingdom.
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OK at the very basic level, you would want something like the following to get you going in C#: Code:
[DllImport("piapi32.dll")]
public static extern Int32 piut_setservernode(String servername);
[DllImport("piapi32.dll")]
public static extern Int32 piut_login(String username, String password, out Int32 valid);
static void Main(string[] args)
{
Int32 hresult = piut_setservernode("localhost");
if (hresult == 0)
{
Int32 valid = 0 ;
hresult = piut_login("", "", out valid);
}
}
However, I would recommend that you use PISDK instead.  Principal Consultant
Real-Time Data Management @ Wipro Technologies
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