Is it possible to give a slider specific values? I want an r-slider that can select between:
1, 2, 4, 8, 16…etc.
I know I could obviously do that with a combo box, but it’s not as easy to control in real time.
I know if I need to I can just have increments of one and just do 2^x in my code… but it would be nice if it told me what it’s really at aswell 
You could ignore the rslider’s own textbox, convert the integers to your desired values in csound and then send them back out to a numberbox widget, strategically placed near the rslider. There’s no documentation for numberbox, maybe it’s in deprecation limbo?
That’s a very good point! It doesn’t have to be directly associated with that widget in particular. Nice one
No, I just seem to have forgotten about it completely! I’m in the process of updating my PC. Once my new SSD drive is up and running(later today I hope!) I’ll get on to sorting the documentation.
You could also use the popuptext identifier. Here’s your powers of 2 sequence.
<Cabbage>
form size(200, 200)
rslider bounds(50, 50, 100, 100), channel("integers"), range(0, 10, 0, 1, 1), identchannel("Slider")
</Cabbage>
<CsoundSynthesizer>
<CsOptions>
-n -m0d
</CsOptions>
<CsInstruments>
instr 1
kints chnget "integers"
if changed(kints)==1 then
chnset sprintfk("popuptext(\"%d\")",2^kints), "Slider"
endif
endin
</CsInstruments>
<CsScore>
i1 0 [60*60*24*7]
</CsScore>
</CsoundSynthesizer>