Apparatus for programming extended code of keyboard and method for the same

1. A controlling method for programming extended code of a keyboard, the controlling method providing a second key code for the keyboard, which already has a first key code, and controlling a selection between the first key code and the second key code, the method comprising the steps of:

(a) the keyboard receiving an extended code processing command and judging the extended code processing command to be used for enabling the second key code or disabling the second key code; the keyboard further receiving a key code setting parameters after the extended code processing command, which defines an operating status of the second key code of the key;

(b) updating the operating status of the key as either enabled with said second key code or disabled with said second key code in accordance with said extended code processing command;

(c) a keyboard program of the keyboard detecting a keystroke of the key and discriminating an operation mode of the key between a standard key code mode and an extended key code mode; if the key is operated at the standard key code mode, a first key code of the key is sent, else a next step (d) is executed;

(d) if the key has been set with extended key code, a second key code of the key is sent, else the first key code of the key is sent.

2. The controlling method for programming extended code as in claim 1 , wherein the first key code is one of the standard key code of a key in a typing region and a standardized extended key code of a special key.

3. The controlling method for programming extended code as in claim 2 , wherein the second key code is a standard key code with a prefix when the first key code is the standard key code of the key in the typing region.

4. The controlling method for programming extended code as in claim 2 , wherein the second key code is another extended key code when the first key code is the extended key code of the special key.

5. The controlling method for programming extended code as in claim 1 , wherein the keyboard further has a preview key to show an extended key code setting of the key.

6. The controlling method for programming extended code as in claim 1 , wherein the extended code processing command in step (a) is sent by a computer.

7. The controlling method for programming extended code as in claim 1 , wherein the key code setting parameters in step (a) are ended by a termination command.

8. The controlling method for programming extended code as in claim 1 , wherein the keyboard further has a mode selection key to toggle the keyboard between the standard key code mode for sending the first key code and the extended key code mode for sending the second key code in step (c).

9. A controlling method for programming extended code of a keyboard, the controlling method providing a second key code for the keyboard, which already has a first key code, and controlling a selection between the first key code and the second key code, the method providing a mode selection key to toggle the keyboard between a standard key code mode and an extended key code mode, and the method comprising the steps of:

(a) the keyboard receiving an extended code processing command and key code setting parameters after the extended code processing command, which defines an operating status of the second key code of the key;

(b) updating the operating status of the second key code of the key corresponding to the key code setting parameters;

(c) a keyboard program of the keyboard detecting a keystroke of the key and discriminating an operation mode of the key between the standard key code mode and the extended key code mode; if the key is operated at the standard key code mode, a first key code of the key is sent, else a next step (d) is executed;

(d) if the key has been set with extended key code, a second key code of the key is sent, else the first key code of the key is sent; and

(e) providing a preview key operable to show an extended key code setting of the keys on the keyboard.

10. The controlling method for programming extended code as in claim 9 , wherein the key code setting parameters in step (a) are ended by a termination command.

11. The controlling method for programming extended code as in claim 9 , wherein in the step (b), the operation of updating the setting of the second key code of the key is to enable the second key code.

12. The controlling method for programming extended code as in claim 9 , wherein in the step (b), the operation of updating the setting of the second key code of the key is to disable the second key code.