com - How would one instantiate a class given a ProgID alone in C++? -

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say have progid prog.class. in powershell, enough things

$obj = new-object -com "prog.class" $obj.method();

in c++ though, need know supported interfaces

cocreateinstance(clsidfromprogid(...),...,iid_someinterface,...)

how away in c++ knowing progid , not interface ids? there way possible interface ids? can cocallmethodonclass(...)?

powershell uses iid_idispatch obtain idispatch*. interface supports late binding, many com servers implement it.

c++ not support late binding in language syntax, make more painful affair. you'll have call idispatch::getidsofnames() translate member name "method" dispid, idispatch::invoke() call it.


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