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PDC can now be changed in realtime

#1

A form’s latency() identifier can now be updated in realtime. The form widget has a channel automatically set up named ‘form’. The code shown below updates the plugin latency in realtime with a slider that jumps in integer increments from 1 to 8. Updating a plugin’s PDC in real time may not be supported by some plugin hosts.

instr UpdateLatency
    kLatencySliderVal, kLatencyTrig cabbageGetValue "latencySlider"
    cabbageSet kLatencyTrig, "form", "latency", pow(2, kLatencySliderVal)
    printf "Setting latency to %d\n", kLatencyTrig, pow(2, kLatencySliderVal)
endin
#2

Rory, on a related note, I’ve been wondering if it is possible to get the size of a form? I’ve been putting an image into the form, and getting the size from that, but if I could get it directly from the form…

#3

Not up until now. But now that I’ve changed the underlying form class it should be easy to access that info. Leave it with me. I’ll get that going shortly.

1 Like
#4

Thanks.

#5

So, does this mean that if we don’t specify a parent in cabbageCreate, that it will assume “form”? Also, can we explicitly use “form” in a parent identifier?

#6

If you don’t specify a parent it will be assigned to the main form. No need to be able you assign this. It makes little sense. Or?

#7

I just checked with the latest release and this is already possible. Try this:

instr 1
    kWidth cabbageGet "form", "width"
    kHeight cabbageGet "form", "height"
    printk2 kWidth
    printk2 kHeight
endin

[edit] I just added an i-time version of cabbageSet so you can also do this:

instr 1
    iWidth cabbageGet "form", "width"
    iHeight cabbageGet "form", "height"
    print iWidth
    print iHeight
endin
#8

Thanks, Rory! This is great! Got the latest and will continue moving forward!