Method for long tern activating Fn key

A technology for inputting keys and executing steps, which is applied in the technical field of activation of function keys on laptop keyboards, and can solve problems such as user inconvenience

Inactive Publication Date: 2004-07-14
LENOVO (BEIJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved in the present invention is to provide a method for long-term activation of the FN key by only pressing it once, so as to overcome the need to hold down the Fn key and related keys simultaneously with both hands when using the Fn key to provide extended functions for other keys in the prior art. Defects such as inconvenience to users

Method used

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  • Method for long tern activating Fn key
  • Method for long tern activating Fn key

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Embodiment Construction

[0018] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Because the scan codes of all keys on the keyboard, including the Fn key, exist in an original vector table, when a key is pressed, the key will inevitably generate a scan code. At this time, the key can be judged by referring to the original vector table Is it the Fn key? If so, make a mark for the Fn key, indicating that it has been pressed; in this state, if the other keys are pressed, their corresponding scan codes will increase a hexadecimal value, then in After adding this value to all keys on the basis of the original vector table, a brand new vector table is generated. In this new vector table, except for the Fn key value unchanged, the rest of the keys are all increased with the same value; the added 16 The control value can not be fixed, but in order to prevent the added value from being the same as some values ​​in the origi...

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PUM

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Abstract

The long term Fn key activating process includes the steps of: step 1 of pressing any key; step 2 of judging whether the key is Fn key; step 3 of processing in the original meaning of the key if no; step 4 of setting Fn Flag to 1 if yes; step 5 of inputting next key; step 6 of judging whether the key is Fn key; step 7 of resetting Fn Flag to 0 before returning to the step 1 if yes; step 8 of increasing the input key by one certain value if not; step 9 of comparing the value after being increased with preset functional key value; step 10 of performing program processing if the comparison result is the equal; step 11 of subtracting the same value from the increased value and processing in the original meaning before returning to step 5 finally. Owing to the after Fn key is pressed, the scan codes of the other keys are increased with one certain value to become completely different meaning, and it is enough to press the Fn key for one additional time before single hand operation to realize the supplementary functions.

Description

technical field [0001] The invention relates to a function key on a computer keyboard, in particular to an activation technology of the function key on a notebook computer keyboard. Background technique [0002] Anyone who has used a laptop knows that when we want to use the Fn key on the keyboard to realize various expansion functions of other keys, such as switching screens, adjusting screen brightness, adjusting volume, etc., we always have to hold down the Fn key with both hands at the same time. And the related key, that is, it can only be activated when the Fn key is pressed, and it is deactivated after releasing the hand. However, since this method must use both hands at the same time, it often causes inconvenience to users who are presenting or users with limited mobility. Contents of the invention [0003] The technical problem to be solved in the present invention is to provide a method for long-term activation of the FN key by only pressing it once, so as to ...

Claims

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Application Information

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IPC IPC(8): G06F3/023
Inventor 赵毅
Owner LENOVO (BEIJING) CO LTD
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