custom property parameter OnChanged callbacks 2005-06-19 - By benp
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hello list,
I'm having trouble with the _OnChanged callbacks for parameters in a
self-installed property.
Is it true that all _OnChanged callbacks are triggered for a property on
a frame change, if it is currenly being inspected?
I have a callback that does some parameter plotting triggered by a
parameter_OnChanged callback, which all works fine and dandy if i'm not
stepping through frames, or if the custom PPG is not currently being
inspected.
The trouble is when I have the PPG inspected and step through frames, it
will call *every* parameter _OnChanged callback even though the
parameters are *not* being changed. This means i get the plotting to run
on every frame step! Tedious.
I will probably have to change my logic, attatching the plotting process
to a button's _OnClicked event, which isn't so bad, as _OnClicked events
don't seem to be called until being explicitly triggered *only* by a
button click.
I just expected that a frame change would not nessessarily trigger all
of my _OnChanged callbacks.
I have also verified that it isn't something weird i'm doing in this
particular plugin. I have made a simple custom property plug that
behaves the same way.
I have been writing self installing plugis for a while now, but this has
supprised me!
Any hints or slaps around the head would be appreciated.
cheers
benp
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