# 7 years ago

fernandolaudadio

I have problems with two methods that's not implemented. Exist an OPCaccess functional and newer version than http://www.esrf.eu/computing/cs/tango/tango_doc/ds_doc/tango-ds/Communication/OPCaccess/index.html ? My configuration is: Windows 7 SP1 32 bits. visual studio 2010 tango includes & libs ver 922 for vs2010. the error log: OPCaccess.obj : error LNK2001: símbolo externo "public: virtual bool __thiscall OPCaccess_ns::OPCaccess::is_ReadCache_allowed(class CORBA::Any const &)" (?is_ReadCache_allowed@OPCaccess@OPCaccess_ns@@UAE_NABVAny@CORBA@@@Z) sin resolver OPCaccess.obj : error LNK2001: símbolo externo "public: virtual bool __thiscall OPCaccess_ns::OPCaccess::is_ReadDirect_allowed(class CORBA::Any const &)" (?is_ReadDirect_allowed@OPCaccess@OPCaccess_ns@@UAE_NABVAny@CORBA@@@Z) sin resolver .\Debug\OPCaccessDs.exe : fatal error LNK1120: 2 externos sin resolver

# 7 years ago
hardion	Hi, MAX IV don't use OPC anymore but we did used a version of this device and it works. I will ask my colleague. Cheers, Vincent Vincent Hardion Control System MAX IV Laboratory

# 7 years ago
Andreas Persson	Hi, is_ReadCache_allowed() and is_ReadDirect_allowed() are defined in OPCaccessStateMachine.cpp. Perhaps you need to add that file to the project? Cheers, Andreas

# 7 years ago
fernandolaudadio	Thanks for the answer!!! what's the last version of OPCaccessDS. I'm currently working with this https://svn.code.sf.net/p/tango-ds/code/DeviceClasses/Communication/OPCaccess/tags/baseline-1_1_1