EFI_STATUS(EFIAPI * EFI_MM_STANDBY_BUTTON_REGISTER)(IN CONST EFI_MM_STANDBY_BUTTON_DISPATCH_PROTOCOL *This, IN EFI_MM_HANDLER_ENTRY_POINT DispatchFunction, IN EFI_MM_STANDBY_BUTTON_REGISTER_CONTEXT *RegisterContext, OUT EFI_HANDLE *DispatchHandle)
EFI_STATUS(EFIAPI * EFI_MM_HANDLER_ENTRY_POINT)(IN EFI_HANDLE DispatchHandle, IN CONST VOID *Context OPTIONAL, IN OUT VOID *CommBuffer OPTIONAL, IN OUT UINTN *CommBufferSize OPTIONAL)