COM Interface using C++ code. How load OpenDSSEngine.DSS?

[Ricardo Henriques]

Hi.

I'm trying to load the OpenDSSEngine.dll lib through the COM interface. Despite having read the tips on the forum about it, I couldn't load the lib. It seems that there is a header called "OpenDSSengine_TLB.h" that contains the IDSS type but I couldn't find it. The code snippet I made to load the library is below. Could someone help me please? Thanks in advance.

//cpp code

    HRESULT result = CoInitialize(NULL);

    CLSID clsid;
    IDispatch *DSSObj; // What type/interface to DSSObj??? IDSS type (forum) is in "OpenDSSengine_TLB.h" file???
    //IID riid;        // Who is IID_IDSS???
    HRESULT hr1 = CLSIDFromProgID(L"OpenDSSEngine.DSS", &clsid);
    HRESULT hr2 = CoCreateInstance(clsid, NULL, CLSCTX_INPROC_SERVER, IID_IDispatch, (void**)&DSSObj);

[Davis Montenegro]

Hello,

Check this out:

https://sourceforge.net/p/electricdss/discussion/861976/thread/ce57c5a0/

Best regards,

[Ricardo Henriques]

Hi Davis. Thanks for the quick response.

I checked the discussion you mentioned in addition to this one:

https://sourceforge.net/p/electricdss/discussion/beginners/thread/70274502/

It seems that a header "OpenDSSengine_TLB.h" is needed. This header defines the IDSS interface. But I couldn't find this header file. Or maybe there is another way to load OpenDSSEngine. DSS with a c++ code.

Best regards.