Compaq 2 Computer - Changing Keyboard Tones N

DocumentID: 652782
Revision Date: 29-Feb-96 8:29:18 PM

The information in this document applies to:
WordPerfect® 5.1 for DOS

Problem

Symptoms: The customer is using a Compaq 2 computer. This computer contains a feature to change keyboard tones by pressing one of the following key combinations: Alt-Delete and then Plus (+) or Minus (-). In WordPerfect 4.2, the customer could use this feature, but the customer cannot get this feature to work in WP 5.1. Solutions: WordPerfect captures all key combinations by placing itself in line to grab all the keys that are read into the system. The keys are read by the system when the user presses the keys on the keyboard while within WP. Since WP is first in line to grab any key combinations (or any single key pressed), WP is the first product to know what key has been pressed. If the key that has been pressed is not the correct key to perform a function in WP, the program ignores the key command. WP ignores the keystroke so that normal operation or incorrect key combinations do not create problems. Furthermore, WP can then assign any key combination for a function in WP when the user creates a soft keyboard definition (library of key combinations). WP (being the first in line) can then read what key combination or single keystroke was fed to the system and then perform the specific commands. This will happen if the key combination or single keystroke is found in the soft keyboard definition. If the key combination pressed is not found in the soft keyboard definition or if the combination is not a normal WP function, WP will ignore the key pressed and go on with normal operations. If a Terminate and Stay Resident (TSR) program is the first in line to receive the keystrokes and if the key combination is not the hotkey function to start the TSR, the TSR program passes the key combination to the next program in line. In most cases, WP is the next program. WP is not a TSR program. WP will not try to pass on the key combination to the next program in line. This keyboard tone feature of the Compaq system operates similar to a TSR program. If a hotkey sequence (such as Alt-Delete and then either - or +) is pressed, the computer will toggle through the keyboard tones. If WP is first in line to receive keystrokes, WP never allows the Compaq system to know what key combinations are pressed. The customer can use the Go to DOS (Ctrl-F1, 1) option to toggle the keyboard tones. Once the customer is out at DOS, WP takes itself out of line and the Compaq system can then place itself back at the front of the line. This allows the user to press the key combination and get the system to toggle through the keyboard tones.

Answer:

Details:

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