Question

Instruction on accessing a interface to an application, in plain C/C++ without:

• MFC
• ATL
• WTL

Basically, I would like to make use of a COM object.

Working sample source code or guidance – to using (functionality) a COM object, not creating a COM server.

Regards

Answer 1

Here is a simple example in plain C++:

CoInitialize(NULL); // absolutely essential: initialize the COM subsystem IMyInterface* pIFace; // create the object and obtain a pointer to the sought interface CoCreateInstance(CLSID_MyObject, NULL, CLSCTX_ALL, IID_IMyInterface, &pIFace); pIFace->MethodIReallyNeed(); // use the object pIFace->Release(); // free the object CoUninitialize(); // cleanup COM after you're done using its services 

Copied from here: COM Basics