hello, was wondering if anyone might know how apple macbook's efi can detect 
the option key. as i understand it apples' efi does not support the 
Simple_Text_Input_EX_Protocol, just the earlier Simple Text Input Protocol (not 
extended) and therefore can't detect the shift states and toggle states of the 
key input.
  (hence not detect ALT, CTRL etc, or OPTION.)

so how does apple detect if OPTION is pressed to know to bring up Startup 
Manager?
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