# Opc\_connect

**URL:** <https://www.ruby-forum.com/t/opc-connect/122314>\
**Category:** Ruby\
**Created:** [December 6, 2007, 4:07pm UTC](https://www.ruby-forum.com/t/opc-connect/122314 "2007-12-06T16:07:27Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![manjunath](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/c6cbf5/32.png) [@manjunath](https://www.ruby-forum.com/u/manjunath)\
**Post date:** [December 6, 2007, 4:07pm UTC](https://www.ruby-forum.com/t/opc-connect/122314/1 "2007-12-06T16:07:27Z")

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Hi,

Please any one can help me regarding this problem. My problem is , I  
am trying to compile some code using VC++ 6.0 originary written in  
linux. In which it is using some of the hp OVO api’s like opc\_connect(),  
opcmsg\_get(),etc .I get the prototype of these functions in opcsvapi.h  
file and code is compiling but it is giving linking error “unresolved  
external symbol \_opc\_connect”. Is any one can tell me the dll required  
to solve this problem and where I will get it.

Thank you,