Change-over processing method of keyboard instruction input mode

Change-over processing method of keyboard instruction input mode is first to memorize the existing state of main and auxiliary keyboards by sitution flag of auxiliary keyboard software no metter whatkinds of situations they are in the main and auxiliary keyboards. When the key of auxiliary keyboard is pressed down the software will determine whether the state of main keyboard is at the same state of auxiliary keyboard or not. It it is the secret key code will be sent out, if it is not the digital lock code will be sent to the main computer to change the main keyboard state as the same with the auxiliary keyboard state and then to send secret key code to main computer and once more to send digital lock code to main computer to let the main keyboard return to original situation, but the auxiliary keyboard remaining unchanged.