Re: [Openfx-developer] are these buf in the host?

[Hybris <hy...@gm...>]

> Well, it depends.  Are you passing NULL or some uninitialized variable as
> the param handle?

during fetch i am not passing anything:

OFX::Log::print("********************************before fetch scale");
rScale_  = fetchDoubleParam("scaleR");

if param "scaleR" has not been defined before (lets's say i have a
typo there), the host crashes

this is some log coming from OFX:

********************************************************************************
START mainEntry (OfxActionCreateInstance)
    Retrieved string property OfxImageEffectPropContext[0], was given
OfxImageEffectContextFilter.
    Set pointer property OfxPropInstanceData[0] to be 0874FE90.
    Retrieved string property OfxImageEffectPropContext[0], was given
OfxImageEffectContextFilter.
    ********************************before fetch scale
    Set pointer property OfxPropInstanceData[0] to be 00000000.
STOP mainEntry (OfxActionCreateInstance)

********************************************************************************
START mainEntry (OfxActionBeginInstanceChanged)
    Retrieved pointer property OfxPropInstanceData[0], was given 00000000.
    ERROR : Instance data handle in effect instance properties is NULL!
    Retrieved string property OfxPropChangeReason[0], was given
OfxChangeUserEdited.