Information-processing apparatus and button function control method for use in the apparatus

1. A portable computer including a hardware button that is provided on a main body of the portable computer and to which a program is assigned, comprising:

means for executing the program in response to an operation of the hardware button;

means for inhibiting the program from being executed, when an authority level of a user who has operated the hardware button is lower than a first authority level with which the user is allowed to use the hardware button;

means for executing a button function setting process based on a request for setting of a button function for executing the program, the button function setting process including a process to assign a program to the hardware button and a process to change the program assigned to the hardware button to another program; and

means for inhibiting the button function setting process from being executed, when an authority level of a user who has made the request for the setting of the button function is lower than a second authority level with which the user is allowed to use the button function setting process.

2. The computer according to claim 1 , wherein the button function setting process further includes a process to enable or disable the button function based on the request for the setting of the button function.

3. The computer according to claim 1 , wherein the button function setting process further includes a process to change the second authority level based on the request for the setting of the button function.

4. The computer according to claim 1 , wherein:

the means for executing the program includes a controller which generates a button event indicative of the operation of the hardware button, in response to the operation of the hardware button, and means for receiving the button event generated by the controller, and requesting an operating system, operating in the computer, to activate the program corresponding to the hardware button;

the button function setting process includes a process to enable or disable the button function based on the request for the setting of the button function; and

the means for executing the button function setting process includes means for inhibiting the controller from generating the button event if the request for the setting of the button function requests disable of the button function.

5. A method of controlling a button function for executing a program assigned to a hardware button provided on a portable computer, comprising:

executing the program in response to an operation of the hardware button;

inhibiting the program from being executed, when an authority level of a user who has operated the button is lower than a first authority level with which the user is allowed to use the button;

executing a button function setting process based on a request for setting of the button function for executing the program, the button function setting process including a process to assian a program to the hardware button and a process to change the program assigned to the hardware button to another program; and

inhibiting the button function setting process from being executed, when an authority level of a user who has made the request for the setting of the button function is lower than a second authority level with which the user is allowed to use the button function setting process.

6. A program stored in a storage medium for causing a portable computer to control a button function for executing a program assigned to a hardware button provided on the portable computer, comprising:

causing the computer to execute the program in response to an operation of the hardware button;

causing the computer to inhibit the program from being executed, when an authority level of a user who has operated the hardware button is lower than a first authority level with which the user is allowed to use the hardware button;

causing the computer to execute a button function setting process based on a request for the setting of the button function, the button function setting process including a process to assign a program to the hardware button and a process to change the program assigned to the hardware button to another program; and

causing the computer to inhibit the button function setting process from being executed, when an authority level of a user who has made the request for the setting of the button function is lower than a second authority level with which the user is allowed to use the button function setting process.