I've been looking around for some examples or source for custom
canvas controls, specifically knob or slider styles. And of course,
found very little.
There appears in the NUG list a lot of requests over the years for
these types of controls but very little offered in response to them.
For anyone designing anything from a controller (midi, volume,
mixers) to who knows what, these types of controls would be far more
graphically pleasing than the RB slider. And hopefully one heck of a
lot more versatile.
For example, a slider class could have hatch marks/numbers/bar graph
on left or right side (top or bottom for horizontal controls), custom
"thumbs", static fields linked to the control for the display of the
control current setting, a bypass mode so a control could be set
without generating a "change" event and so on. Add in the usual min/
max/current/step and the ability to handle "center" as off (like a
pan/balance control in audio), direction left to right or bottom to
top (or vice versa) and you'd have one nicely rounded out control.
I put an example sample of a few controls on my server:
http://www.wabbitwanch.net/rb/controlSamples.jpg
Since controls like this don't appear to exist, I wonder if it's
because it's quite difficult to write the control, or the ROI would
be quite low so it's not worth the effort for a developer?
I don't think that I'd have the required ability to create a control
like this, but I'm sure that many do. Perhaps if others joined in, we
could entice someone to create a package of custom canvas controls to
sell at a reasonable cost.
If not, well there's always the RB "slider" ...shudder...:-)
Mel
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