<CsoundSynthesizer>
<CsOptions>
; Select audio/midi flags here according to platform
; Audio out   Audio in    No messages
-odac           -iadc     -d     ;;;RT audio I/O
; For Non-realtime ouput leave only the line below:
; -o FLvalue.wav -W ;;; for file output any platform
</CsOptions>
<CsInstruments>

; Using the opcode flvalue to display the output of a slider 
sr = 44100
kr = 441
ksmps = 100
nchnls = 1

FLpanel "Value Display Box", 900, 200, 50, 50
    ; Width of the value display box in pixels
    iwidth = 50
    ; Height of the value display box in pixels
    iheight = 20
    ; Distance of the left edge of the value display
    ; box from the left edge of the panel
    ix = 65
    ; Distance of the top edge of the value display
    ; box from the top edge of the panel
    iy = 55

    idisp FLvalue "Hertz", iwidth, iheight, ix, iy
    gkfreq, ihandle FLslider "Frequency", 200, 5000, -1, 5, idisp, 750, 30, 125, 50
    FLsetVal_i 500, ihandle
; End of panel contents
FLpanelEnd
; Run the widget thread!
FLrun

instr 1
    iamp = 15000
    ifn = 1
    asig oscili iamp, gkfreq, ifn
    out asig
endin


</CsInstruments>
<CsScore>

; Function table that defines a single cycle
; of a sine wave.
f 1 0 1024 10 1

; Instrument 1 will play a note for 1 hour.
i 1 0 3600
e


</CsScore>
</CsoundSynthesizer>