Good morning,
On 6/3/20 3:49 AM, Steve Fanning wrote:
All,
I am a member of the Documentation Team, currently helping to update the
Calc Guide. I have found a system behaviour that I don’t understand and
wondered whether anybody could explain what is going on?
My keyboard has two Control keys, one located at the bottom left and one
located a few keys to the right of the space bar. I had assumed that
they would be interchangeable and that I would be able to use either
when a Ctrl key was to be pressed. However this assumption appears not
to be valid in some cases.
An example where my assumption holds can be found by pressing the
keyboard shortcut Ctrl+F3, which is intended to be equivalent to
selecting Sheet > Named Ranges and Expressions > Manage in Calc’s Menu
bar. Both methods display the Manage Names dialog. In this case I can
use either of my Control keys, the shortcut works for both.
By way of counterexample, the Calc keyboard shortcut Ctrl+F2 is intended
to be equivalent to selecting Insert > Function in the Menu bar and both
should display the Function Wizard dialog. However using my left Control
key, Ctrl+F2 appears to do nothing, while using the right key, Ctrl+F2
displays the Function Wizard dialog as expected. This behaviour is
identical for my native Windows 10 version of Calc and for a Linux
version running in a virtual terminal through VMWare.
So in summary, is there a technical reason why my two Control keys are
not always interchangeable?
The two control keys generate different keyboard scan codes. By
*default*, they are routed to the same functions. But specific
combinations of left- or right-ctrl with a given key can be re-routed
based on firmware or installed software. If you examine the global
hot-keys features of your OS, or the configuration of international
keyboards (compose keys, dead keys, etc), you will find that they are
identified separately.
This is true of left- and right-alt keys as well.
Phil
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