Calling by name

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So call works fine like this:

call("somename", parameter);

But what if I don't have the name or want to call by address? Is it possible to find it or feed call a pointer with the address?

I ask because I can call on the 7D master but its by name, arg1 is a pointer but all canon examples use it like call. I know its defined in ML with a const char as the first argument, when I tried feeding a pointer to it, didn't seem to work.