Do you mean this?

opcode Toggle,k,0
 kstate init 0
 kstate = kstate == 0? 0 : 1
 xout kstate
endop

========================
Prof. Victor Lazzarini
Maynooth University
Ireland

> On 31 Jul 2020, at 10:44, Dr. Richard Boulanger  wrote:
> 
> WARNINGThis email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe.
> Does anyone have a toggle UDO that they might be able to share?
> Are there examples that you might point me to in Floss or in CsoundQt?
> 
> Thanks.
> 
> What my students are trying to do is press a single button (on a Bela or Arduino) or play a single MIDI note on a controller keyboard and have it turn on an effect, and then press the same button again and have it turn off the effect.  Or, like in Ableton Live - start playing a sample and then press again to stop playing the sample.
> 
> a "toggle"
> 
> John and I have worked on a new "counter" opcode that will work in these situations, but it won't be released until 6.15.  
> 
> I will be working and searching and sharing later today, but if any of you have one already, or might point me to some solutions - that would be a huge help and head-start.  (In CsoundQt, the button widget has a "latch" mode, which is perfect, but I need this to work in Csound without a widget or front-end)
> 
> Thanks
> 
> -dB
> Dr. Richard Boulanger
> Professor of Electronic Production and Design
> Berklee College of Music
> Professional Writing and Technology Division
> 
> skype: radiobaton 
> facebook: https://www.facebook.com/richard.boulanger.58
> about: http://www.boulangerlabs.com/#about
> about: http://www.csounds.com/community/developers/dr-richard-boulanger/
> music: http://www.csounds.com/community/developers/dr-richard-boulanger/dr-richard-boulanger-music/
> Boulanger Labs - http://boulangerlabs.com
> The Csound Book - http://mitpress.mit.edu/books/csound-book
> The Audio Programming Book - http://mitpress.mit.edu/books/audio-programming-book
> Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Csound mailing list
Csound@listserv.heanet.ie
https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
Send bugs reports to
        https://github.com/csound/csound/issues
Discussions of bugs and features can be posted here

actually the other way round


opcode Toggle,k,0
 kstate init 0
 kstate = kstate == 0? 1 : 0
 xout kstate
endop

========================
Prof. Victor Lazzarini
Maynooth University
Ireland

> On 31 Jul 2020, at 11:07, Victor Lazzarini  wrote:
> 
> Do you mean this?
> 
> opcode Toggle,k,0
> kstate init 0
> kstate = kstate == 0? 0 : 1
> xout kstate
> endop
> 
> ========================
> Prof. Victor Lazzarini
> Maynooth University
> Ireland
> 
>> On 31 Jul 2020, at 10:44, Dr. Richard Boulanger  wrote:
>> 
>> WARNINGThis email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe.
>> Does anyone have a toggle UDO that they might be able to share?
>> Are there examples that you might point me to in Floss or in CsoundQt?
>> 
>> Thanks.
>> 
>> What my students are trying to do is press a single button (on a Bela or Arduino) or play a single MIDI note on a controller keyboard and have it turn on an effect, and then press the same button again and have it turn off the effect.  Or, like in Ableton Live - start playing a sample and then press again to stop playing the sample.
>> 
>> a "toggle"
>> 
>> John and I have worked on a new "counter" opcode that will work in these situations, but it won't be released until 6.15.  
>> 
>> I will be working and searching and sharing later today, but if any of you have one already, or might point me to some solutions - that would be a huge help and head-start.  (In CsoundQt, the button widget has a "latch" mode, which is perfect, but I need this to work in Csound without a widget or front-end)
>> 
>> Thanks
>> 
>> -dB
>> Dr. Richard Boulanger
>> Professor of Electronic Production and Design
>> Berklee College of Music
>> Professional Writing and Technology Division
>> 
>> skype: radiobaton 
>> facebook: https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.facebook.com%2Frichard.boulanger.58&data=02%7C01%7CVictor.Lazzarini%40mu.ie%7C7d2c0d8ac6714c2a308908d835397f0d%7C1454f5ccbb354685bbd98621fd8055c9%7C1%7C0%7C637317868341958289&sdata=nIi485JjFCS3aqruH987MpyfDISfKLx0UKENkPna9fQ%3D&reserved=0
>> about: https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.boulangerlabs.com%2F%23about&data=02%7C01%7CVictor.Lazzarini%40mu.ie%7C7d2c0d8ac6714c2a308908d835397f0d%7C1454f5ccbb354685bbd98621fd8055c9%7C1%7C0%7C637317868341968283&sdata=jxQk0TgDJivGuv85Zjys7dUG5Ik3KGPiwHAWZdfQ1sk%3D&reserved=0
>> about: https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.csounds.com%2Fcommunity%2Fdevelopers%2Fdr-richard-boulanger%2F&data=02%7C01%7CVictor.Lazzarini%40mu.ie%7C7d2c0d8ac6714c2a308908d835397f0d%7C1454f5ccbb354685bbd98621fd8055c9%7C1%7C0%7C637317868341968283&sdata=JWZj1jVaaB5%2B65ayBVutuH7mXqNIOCL7QrwXTHNnFv4%3D&reserved=0
>> music: https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.csounds.com%2Fcommunity%2Fdevelopers%2Fdr-richard-boulanger%2Fdr-richard-boulanger-music%2F&data=02%7C01%7CVictor.Lazzarini%40mu.ie%7C7d2c0d8ac6714c2a308908d835397f0d%7C1454f5ccbb354685bbd98621fd8055c9%7C1%7C0%7C637317868341968283&sdata=%2BjEi5joVSTlNNIxgOvWGYagb4VeP28XhYu0pjNfDJyk%3D&reserved=0
>> Boulanger Labs - https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fboulangerlabs.com%2F&data=02%7C01%7CVictor.Lazzarini%40mu.ie%7C7d2c0d8ac6714c2a308908d835397f0d%7C1454f5ccbb354685bbd98621fd8055c9%7C1%7C0%7C637317868341968283&sdata=dJd9UMNNMRPvvYp4%2BnD79CA60bnjfHse66upApnknks%3D&reserved=0
>> The Csound Book - https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmitpress.mit.edu%2Fbooks%2Fcsound-book&data=02%7C01%7CVictor.Lazzarini%40mu.ie%7C7d2c0d8ac6714c2a308908d835397f0d%7C1454f5ccbb354685bbd98621fd8055c9%7C1%7C0%7C637317868341968283&sdata=BPo3Fxxp7IKq%2FmXg%2Fcoqt6ojLJfu1RQXCfeYk9QMTGc%3D&reserved=0
>> The Audio Programming Book - https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmitpress.mit.edu%2Fbooks%2Faudio-programming-book&data=02%7C01%7CVictor.Lazzarini%40mu.ie%7C7d2c0d8ac6714c2a308908d835397f0d%7C1454f5ccbb354685bbd98621fd8055c9%7C1%7C0%7C637317868341968283&sdata=32xGVO7P0rjBPkwdgkTCKubeifH4FfhHJNIBR9V1Zwg%3D&reserved=0
>> Csound mailing list Csound@listserv.heanet.ie https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Flistserv.heanet.ie%2Fcgi-bin%2Fwa%3FA0%3DCSOUND&data=02%7C01%7CVictor.Lazzarini%40mu.ie%7C7d2c0d8ac6714c2a308908d835397f0d%7C1454f5ccbb354685bbd98621fd8055c9%7C1%7C0%7C637317868341968283&sdata=lrchPT7AnTtbAvdN%2BifSOfhdBtHbu%2FAKqV3o2ETEdoc%3D&reserved=0 Send bugs reports to https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fcsound%2Fcsound%2Fissues&data=02%7C01%7CVictor.Lazzarini%40mu.ie%7C7d2c0d8ac6714c2a308908d835397f0d%7C1454f5ccbb354685bbd98621fd8055c9%7C1%7C0%7C637317868341968283&sdata=AFisC6ZgOKWBQkzvgvHyL00AKdmlHorSvL675o%2BdNP0%3D&reserved=0 Discussions of bugs and features can be posted here
> 
> Csound mailing list
> Csound@listserv.heanet.ie
> https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Flistserv.heanet.ie%2Fcgi-bin%2Fwa%3FA0%3DCSOUND&data=02%7C01%7CVictor.Lazzarini%40mu.ie%7C7d2c0d8ac6714c2a308908d835397f0d%7C1454f5ccbb354685bbd98621fd8055c9%7C1%7C0%7C637317868341968283&sdata=lrchPT7AnTtbAvdN%2BifSOfhdBtHbu%2FAKqV3o2ETEdoc%3D&reserved=0
> Send bugs reports to
>        https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fcsound%2Fcsound%2Fissues&data=02%7C01%7CVictor.Lazzarini%40mu.ie%7C7d2c0d8ac6714c2a308908d835397f0d%7C1454f5ccbb354685bbd98621fd8055c9%7C1%7C0%7C637317868341968283&sdata=AFisC6ZgOKWBQkzvgvHyL00AKdmlHorSvL675o%2BdNP0%3D&reserved=0
> Discussions of bugs and features can be posted here

Csound mailing list
Csound@listserv.heanet.ie
https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
Send bugs reports to
        https://github.com/csound/csound/issues
Discussions of bugs and features can be posted here

Hello Dr. B.
Jul 31 2020, Dr. Richard Boulanger has written:
...
> What my students are trying to do is press a single button (on a Bela or
> Arduino) or play a single MIDI note on a controller keyboard and have it
> turn on an effect, and then press the same button again and have it turn
> off the effect.
...
Could this be done with channels?
Have a UDO to create a channel with a predefined state:
opcode make_toggle, 0, Si
 	Sname, iStartValue xin
 	... ; possibly concat a name like toggle.Sname
 	chn_k SchannelName, 3
 	chnset iStartValue, SchannelName
endop

And then have a toggle opcode to check a control signal with changed2 or
compare to fixed values - in the case of MIDI notes, always setting the
channel to 0 or 1.
opcode toggle_run, k, Sk
 	Sname, kControl xin
 	...
 	kCurrentValue chnget SchannelName
 	if changed2(kControl) == 1 then
 		if kcurrentValue == 0 then
 			kCurrentValue = 1
 		else
 			kCurrentValue = 0
 		endif
 		chnset kCurrentValue, SchannelName
 	endif

 	xout kCurrentValue
endop

That way, I think, you could use this in several places in the orchestra
and still have a central state.

HTH.

Best wishes,

Jeanette

-- 
  * Website: http://juliencoder.de - for summer is a state of sound
  * Youtube: https://www.youtube.com/channel/UCMS4rfGrTwz8W7jhC1Jnv7g
  * SoundCloud: https://soundcloud.com/jeanette_c
  * Twitter: https://twitter.com/jeanette_c_s
  * Audiobombs: https://www.audiobombs.com/users/jeanette_c
  * GitHub: https://github.com/jeanette-c

Don't care about money
It doesn't give me half the thrill <3
(Britney Spears)

Csound mailing list
Csound@listserv.heanet.ie
https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
Send bugs reports to
        https://github.com/csound/csound/issues
Discussions of bugs and features can be posted here

Well it’s even easier in Csound

giSw[] init 127

instr 1
 ikey notnum
 giSw[ikey] = giSw[ikey] == 0 ? 1 : 0
endin


========================
Prof. Victor Lazzarini
Maynooth University
Ireland

> On 31 Jul 2020, at 15:55, Dr. Richard Boulanger  wrote:
> 
> WARNINGThis email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe.
> Thanks!
> 
> I think that the students (and me too) are looking for both a UDO or a nice MIDI instrument model of this.
> - it's all pretty easy in Pd or MaxMSP (and this is the experience that they all bring to Csound)
> 
> -dB
> 
> 
> 
> On Fri, Jul 31, 2020 at 10:50 AM Joseph Hughes  wrote:
> As a UDO I guess the concept would look like this:
> 
> 
> opcode
> instrumentToggle
> 0
> ,
> 
> iooooooo
> 
> i
> InstrumentNumber, iP4, iP5, iP6, iP7, iP8, iP9, iP10
> 
> xin
> 
> 
> 
> i
> InstrumentIsActive
> 
> active
> iInstrumentNumber
> 
> 
> if
> i
> InstrumentIsActive >
> 
> 0
> then
> 
> turnoff2
> i
> InstrumentNumber,
> 
> 8
> ,
> 
> 1
> 
> else
> 
> event_i
> "i"
> ,
> 
> i
> InstrumentNumber,
> 
> 0, -1, iP4, iP5, iP6, iP7, iP8, iP9, iP10
> 
> endif
> 
> endop
> 
> 
> On Fri, Jul 31, 2020 at 10:46 AM Dr. Richard Boulanger  wrote:
> Thanks, Joseph,
> 
> I will try it too and pass that along to the students as well.
> 
> Much appreciated
> 
> Dr. Richard Boulanger
> Professor of Electronic Production and Design
> Berklee College of Music
> 
> 
> 
> On Fri, Jul 31, 2020 at 9:48 AM Joseph Hughes  wrote:
> Hi Richard, This matches the use case you're describing pretty closely. It's not an opcode, it's an instrument that turns a delay effect on and off: https://github.com/riffquantum/static_brothers_see_cound/blob/master/songs/sbDrumKit/instruments/midiRouter/noteInstruments/PadC4.orc
> 
> On Fri, Jul 31, 2020 at 7:26 AM Dr. Richard Boulanger  wrote:
> Victor, Jeanette and Thorin,
> 
> These are all super inspiring and helpful!
> 
> Today is going to be toggle day at Boulanger Labs!
> 
> I will get my students to explore and apply these for sure, and any other suggestions and approaches that others might share too.
> 
> Super helpful and most appreciated.
> 
> -dB
> 
> 
> 
> Dr. Richard Boulanger
> Professor
> Electronic Production and Design
> Berklee College of Music
> 
>> On Jul 31, 2020, at 7:18 AM, thorin kerr  wrote:
>> 
>> 
>> Would i-rate code do?
>> I have a counter which could be used as a toggle. This is similar to Jeanette's solution. You need to give it a string, which is used as a state-saving channel. 
>> 
>> opcode counterChan, i, Spoo
>> ;;; state saving counter.
>> ;;; usage ival counterChan "id" [, iincrement, imodulo, ilower]
>> Schan, iincrement, imodulo, ilower  xin
>> icurrent chnget Schan
>> if (imodulo != 0) then
>>    icurrent = wrap(icurrent, ilower, imodulo)
>>    inewval = wrap((icurrent + iincrement), ilower, imodulo)
>> else
>>    inewval = icurrent + iincrement
>> endif
>> chnset inewval, Schan
>> xout icurrent
>> endop
>> 
>> ;;;Example (toggle) usage
>> ibutton1 counterChan "button1", 1, 2, 0
>> ibutton2 counterChan "button2", 1, 2, 0
>> ibutton3 counterChan "button3", 1, 2, 0
>> 
>> Thorin
>> 
>> 
>> On Fri, Jul 31, 2020 at 7:44 PM Dr. Richard Boulanger  wrote:
>> Does anyone have a toggle UDO that they might be able to share?
>> Are there examples that you might point me to in Floss or in CsoundQt?
>> 
>> Thanks.
>> 
>> What my students are trying to do is press a single button (on a Bela or Arduino) or play a single MIDI note on a controller keyboard and have it turn on an effect, and then press the same button again and have it turn off the effect.  Or, like in Ableton Live - start playing a sample and then press again to stop playing the sample.
>> 
>> a "toggle"
>> 
>> John and I have worked on a new "counter" opcode that will work in these situations, but it won't be released until 6.15.  
>> 
>> I will be working and searching and sharing later today, but if any of you have one already, or might point me to some solutions - that would be a huge help and head-start.  (In CsoundQt, the button widget has a "latch" mode, which is perfect, but I need this to work in Csound without a widget or front-end)
>> 
>> Thanks
>> 
>> -dB
>> Dr. Richard Boulanger
>> Professor of Electronic Production and Design
>> Berklee College of Music
>> Professional Writing and Technology Division
>> 
>> skype: radiobaton 
>> facebook: https://www.facebook.com/richard.boulanger.58
>> about: http://www.boulangerlabs.com/#about
>> about: http://www.csounds.com/community/developers/dr-richard-boulanger/
>> music: http://www.csounds.com/community/developers/dr-richard-boulanger/dr-richard-boulanger-music/
>> Boulanger Labs - http://boulangerlabs.com
>> The Csound Book - http://mitpress.mit.edu/books/csound-book
>> The Audio Programming Book - http://mitpress.mit.edu/books/audio-programming-book
>> Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here
>> Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here
> Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here
> Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here
> Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here
> Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here
> Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here


Csound mailing list
Csound@listserv.heanet.ie
https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
Send bugs reports to
        https://github.com/csound/csound/issues
Discussions of bugs and features can be posted here

as a style concern (clearly the examples so far are correct) I'm fond of:

x = 1 - x

(this breaks if anybody sets x to a value other than 0 or 1, but
ruling that out it has a nice clarity)

On Fri, Jul 31, 2020 at 8:03 AM Victor Lazzarini  wrote:
>
> Well it’s even easier in Csound
>
> giSw[] init 127
>
> instr 1
>  ikey notnum
>  giSw[ikey] = giSw[ikey] == 0 ? 1 : 0
> endin
>
>
> ========================
> Prof. Victor Lazzarini
> Maynooth University
> Ireland
>
> > On 31 Jul 2020, at 15:55, Dr. Richard Boulanger  wrote:
> >
> > WARNINGThis email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe.
> > Thanks!
> >
> > I think that the students (and me too) are looking for both a UDO or a nice MIDI instrument model of this.
> > - it's all pretty easy in Pd or MaxMSP (and this is the experience that they all bring to Csound)
> >
> > -dB
> >
> >
> >
> > On Fri, Jul 31, 2020 at 10:50 AM Joseph Hughes  wrote:
> > As a UDO I guess the concept would look like this:
> >
> >
> > opcode
> > instrumentToggle
> > 0
> > ,
> >
> > iooooooo
> >
> > i
> > InstrumentNumber, iP4, iP5, iP6, iP7, iP8, iP9, iP10
> >
> > xin
> >
> >
> >
> > i
> > InstrumentIsActive
> >
> > active
> > iInstrumentNumber
> >
> >
> > if
> > i
> > InstrumentIsActive >
> >
> > 0
> > then
> >
> > turnoff2
> > i
> > InstrumentNumber,
> >
> > 8
> > ,
> >
> > 1
> >
> > else
> >
> > event_i
> > "i"
> > ,
> >
> > i
> > InstrumentNumber,
> >
> > 0, -1, iP4, iP5, iP6, iP7, iP8, iP9, iP10
> >
> > endif
> >
> > endop
> >
> >
> > On Fri, Jul 31, 2020 at 10:46 AM Dr. Richard Boulanger  wrote:
> > Thanks, Joseph,
> >
> > I will try it too and pass that along to the students as well.
> >
> > Much appreciated
> >
> > Dr. Richard Boulanger
> > Professor of Electronic Production and Design
> > Berklee College of Music
> >
> >
> >
> > On Fri, Jul 31, 2020 at 9:48 AM Joseph Hughes  wrote:
> > Hi Richard, This matches the use case you're describing pretty closely. It's not an opcode, it's an instrument that turns a delay effect on and off: https://github.com/riffquantum/static_brothers_see_cound/blob/master/songs/sbDrumKit/instruments/midiRouter/noteInstruments/PadC4.orc
> >
> > On Fri, Jul 31, 2020 at 7:26 AM Dr. Richard Boulanger  wrote:
> > Victor, Jeanette and Thorin,
> >
> > These are all super inspiring and helpful!
> >
> > Today is going to be toggle day at Boulanger Labs!
> >
> > I will get my students to explore and apply these for sure, and any other suggestions and approaches that others might share too.
> >
> > Super helpful and most appreciated.
> >
> > -dB
> >
> >
> >
> > Dr. Richard Boulanger
> > Professor
> > Electronic Production and Design
> > Berklee College of Music
> >
> >> On Jul 31, 2020, at 7:18 AM, thorin kerr  wrote:
> >>
> >> 
> >> Would i-rate code do?
> >> I have a counter which could be used as a toggle. This is similar to Jeanette's solution. You need to give it a string, which is used as a state-saving channel.
> >>
> >> opcode counterChan, i, Spoo
> >> ;;; state saving counter.
> >> ;;; usage ival counterChan "id" [, iincrement, imodulo, ilower]
> >> Schan, iincrement, imodulo, ilower  xin
> >> icurrent chnget Schan
> >> if (imodulo != 0) then
> >>    icurrent = wrap(icurrent, ilower, imodulo)
> >>    inewval = wrap((icurrent + iincrement), ilower, imodulo)
> >> else
> >>    inewval = icurrent + iincrement
> >> endif
> >> chnset inewval, Schan
> >> xout icurrent
> >> endop
> >>
> >> ;;;Example (toggle) usage
> >> ibutton1 counterChan "button1", 1, 2, 0
> >> ibutton2 counterChan "button2", 1, 2, 0
> >> ibutton3 counterChan "button3", 1, 2, 0
> >>
> >> Thorin
> >>
> >>
> >> On Fri, Jul 31, 2020 at 7:44 PM Dr. Richard Boulanger  wrote:
> >> Does anyone have a toggle UDO that they might be able to share?
> >> Are there examples that you might point me to in Floss or in CsoundQt?
> >>
> >> Thanks.
> >>
> >> What my students are trying to do is press a single button (on a Bela or Arduino) or play a single MIDI note on a controller keyboard and have it turn on an effect, and then press the same button again and have it turn off the effect.  Or, like in Ableton Live - start playing a sample and then press again to stop playing the sample.
> >>
> >> a "toggle"
> >>
> >> John and I have worked on a new "counter" opcode that will work in these situations, but it won't be released until 6.15.
> >>
> >> I will be working and searching and sharing later today, but if any of you have one already, or might point me to some solutions - that would be a huge help and head-start.  (In CsoundQt, the button widget has a "latch" mode, which is perfect, but I need this to work in Csound without a widget or front-end)
> >>
> >> Thanks
> >>
> >> -dB
> >> Dr. Richard Boulanger
> >> Professor of Electronic Production and Design
> >> Berklee College of Music
> >> Professional Writing and Technology Division
> >>
> >> skype: radiobaton
> >> facebook: https://www.facebook.com/richard.boulanger.58
> >> about: http://www.boulangerlabs.com/#about
> >> about: http://www.csounds.com/community/developers/dr-richard-boulanger/
> >> music: http://www.csounds.com/community/developers/dr-richard-boulanger/dr-richard-boulanger-music/
> >> Boulanger Labs - http://boulangerlabs.com
> >> The Csound Book - http://mitpress.mit.edu/books/csound-book
> >> The Audio Programming Book - http://mitpress.mit.edu/books/audio-programming-book
> >> Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here
> >> Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here
> > Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here
> > Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here
> > Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here
> > Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here
> > Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here
>
>
> Csound mailing list
> Csound@listserv.heanet.ie
> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
> Send bugs reports to
>         https://github.com/csound/csound/issues
> Discussions of bugs and features can be posted here

Csound mailing list
Csound@listserv.heanet.ie
https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
Send bugs reports to
        https://github.com/csound/csound/issues
Discussions of bugs and features can be posted here