CTRL+NUM/ May Be Read as CTRL+/ in DOS with NUM LOCK On

ID Number: Q66740

1.00 1.10 | 1.00 1.10

MS-DOS | OS/2

buglist1.00 buglist1.10

Summary:

In the Programmer's WorkBench (PWB) versions 1.0 and 1.1, the

CTRL+NUM/ (CTRL+/ on the numeric keypad) and ALT+NUM/ (ALT+/ on the

numeric keypad) combinations may be interpreted as CTRL+/ and ALT+/

(on the main keyboard). This problem happens only in DOS or in the DOS

3.x box of OS/2, and only on certain computers. This behavior will

cause any macro or function assigned to CTRL+NUM/ or ALT+NUM/ to not

execute when NUM LOCK is on.

More Information:

To reproduce this problem, assign a function or macro to CTRL+NUM/.

Then run the TELL function (CTRL+T by default) and press CTRL+NUM/.

The TELL function prompts for a keystroke, then displays the name of

the keystroke and the function assigned to it. With NUM LOCK on, TELL

will return the following:

unassigned:Ctrl+/

With NUM LOCK off, TELL will return the following:

<function name>:Ctrl+num/

This behavior is identical for the ALT+NUM/ key name, but works

properly for all other key names on the numeric keypad.

If NUM LOCK is off, or if the protected-mode version of PWB is run,

this behavior does not occur.

This behavior has been observed on the following machines:

Northgate 386-33

PS/2 Model 70

PS/2 Model 80-311

Microsoft has confirmed this to be a problem in PWB version 1.0 and

1.1. We are researching this problem and will post new information

here as it becomes available.

Additional reference words: 1.10 1.11