Message
Re: Global Variables
2007-11-30 by rpcfender
> When not specifying .init in globals under $preset, I assume there
> should not be listed any other globals (with the possible exception
> of .name) when the intention is a preset "overlay" - that is, not
> modifying any settings except the controls specified following. This
> way the "basic" preset globals still apply.
I'll call them preset general parameters (as you corrected in a later post).
As Mark pointed out in his excellent guide if you don't use a parameter the BC sets it for you.
So send
$preset
.name' Just a test"
.snapshot on
.request on
.egroups 2
.fkeys off
.lock on
.tx $F0 $41 $13 12 $F7
.init
and you'll get back the same values,
but if you now send (worst case)
$preset
you'll get back
$preset
.name ' '
.snapshot off
.request off
.egroups 4
.fkeys on
.lock off
.init
All the parameters are reset.
Any parameters you sent along with $preset are , of course, set correctly but the others are reset.
> Conversely, I assume that specifying .init does not reset other globals
> to some default values. Rather that all usual global variables need to
> be specified, as one cannot know what they may have been previously set
> to.
So even if you don't use .init all the values you don't send are reset to the BC's default values.
A bit of an unexpected trap there.
All the best
Royce