(Feature): Implement OfxActionBeginInstanceChanged and OfxActionEndInstanceChanged #909
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type:feature
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I'm developing an OpenFX plugin, and want certain groups of parameters to enable/disable themselves depending on whether a checkbox parameter is checked. To do this, I tried updating those parameters when a
kOfxActionEndInstanceChanged
action was fired, but it seems that neither that action norkOfxActionBeginInstanceChanged
are actually dispatched to the plugin.Modifying my plugin to log every action dispatched to it, I saw that
OfxActionInstanceChanged
is dispatched--just not theBegin
/End
actions. When I change a checkbox parameter on the effect, here's every action that the plugin receives in order:It would be nice to be able to update the parameters' enabled/disabled state just once no matter how many parameters are changed at once--right now,
OfxActionInstanceChanged
is fired once per parameter if the user presses the "reset" button.Is this a realistically implementable feature?
Can you contribute in creating this feature?
Additional details
I would be interested in looking into implementing this, but I can't right now because the official instructions for building via Docker don't seem to work right now.
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