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- Forum
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- QuickOPC-Classic in COM
- Reading, Writing, Subscriptions, Property Access
- Can Develop OPC XML DA C++ client in Visual Studio 2015?
Can Develop OPC XML DA C++ client in Visual Studio 2015?
I am using version 5.40 only, Let me try your steps and get back to you.
Thanks a lot.
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0. Make sure you back-up the source code changes you have made, just in case they get overwritten.
1. Re-run the QuickOPC installation.
2. On the 2nd page of the wizard ("Installation Dashboard"), select "Custom install".
3. On the next page ("Select Components"), select "Full installation" (or any other installation that includes what you need).
4. On the "Select Additional Tasks" page, check the box next to "Install component assemblies into the GAC. ...".
5. Finalize the installation.
This should help
Best regards
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Is there any specific third party frameworks and libraries are required to be installed in my dev environment, because in dependency walker I could see lot of dll's are missing for Opclabs.baselib.dll?
I have .NET Framework 4.6 SDk, 4.5.1 SDKs installed. Let me know if any other .NET Framework is required.
Or I can develop this VS 2012 as you always ship in that environment.
Is it feasible to do that, since if sample is ready I need to support Reading, Subscribing and Event & Alarms?
Please let me know the updates asap and awaiting for your reply. If possible can you commit on ETA, just for management perspective.
And also is there any other paid version which could help me to do this, if it so we are ready to buy.
Thanks for understanding.
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I will investigate here and let you know. And I am quite confident that we can make this work. But I cannot give you a result immediately right now - please bear with me.
Regards
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I just checked with OPC DA sample of ReadMultipleItems and its working fine, In that case assemblies are loaded properly right? Please refer attached image.
Thanks.
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Attached error image and please let me know your inputs.
Mean time I also will try to debug the issue.
Thanks.
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for (int i = ResultArray.GetLowerBound(0); i <= ResultArray.GetUpperBound(0); i++)
{
_DAVtqResultPtr DAVtqResultPtr(ResultArray[i]);
_ExceptionPtr ExceptionPtr(DAVtqResultPtr->Exception);
if (ExceptionPtr != NULL)
{
_variant_t exceptionAsString(ExceptionPtr->ToString);
_tprintf(_T("results(%d).Exception.ToString(): %s\n"), i, exceptionAsString.bstrVal);
continue;
}
_DAVtqPtr DAVtqPtr(DAVtqResultPtr->Vtq);
_variant_t vtqAsString(DAVtqPtr->ToString);
_tprintf(_T("results(%d).Vtq.ToString(): %s\n"), i, vtqAsString.bstrVal);
}
Then, report to me the output of the program.
Best regards
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DAVtqResultPtr->Vtq is coming empty only, I also tried with ReadItem, ReadItemValue api by passing required parameters but its failing. And the same ReadItem function in C# takes only 2 parameters and returns, infact, we have 4 overloaded function for same name in C#.
ClientPtr->ReadItem(L"",L"opcxml.demo-this.com/XmlDaSampleServer/Service.asmx", L"Dynamic / Analog Types / Double");
ClientPtr->ReadItemValue(L"", L"opcxml.demo-this.com/XmlDaSampleServer/Service.asmx", L"Dynamic / Analog Types / Double");
Please help me to address this issue.
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- Forum
- Discussions
- QuickOPC-Classic in COM
- Reading, Writing, Subscriptions, Property Access
- Can Develop OPC XML DA C++ client in Visual Studio 2015?