What is REALSetAccelerator supposed to do?

What is REALSetAccelerator supposed to do ?

For example if I register it like follows like the documentation says (having & before the letter).

REALstring key = REALBuildStringWithEncoding("&d", 2, kREALTextEncodingUTF8);
REALSetAccelerator(instance, key);

Then where do I get the event when Alt-d is pressed ?

I somehow thought that it would maybe come into this one here on the control:
*void (actionEventFunction)(REALcontrolInstance, uint32_t reserved);

But the Acceleratoris doing nothing at all for me.



(I am testing this on Windows)