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[id(0x60060001), helpcontext(0x000061aa)]
HRESULT GetComponents([in, out] SAFEARRAY(VARIANT) oAxisComponentsArray);

I want to know how to realize the COM in C++ with InvokeHelper.

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Solution 1

In the IDL file it should be [in, out] SAFEARRAY(VARIANT)* oAxisComponentsArray
In the .h and .cpp files it should be SAFEARRAY** oAxisComponentsArray

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