OfxParameterSuiteV1::paramGetDerivative
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Name

OfxParameterSuiteV1::paramGetDerivative — Gets the derivative of a parameter at a specific time.

Synopsis

#include "ofxParam.h"
OfxStatus (*paramGetDerivative) ( OfxParamHandle paramHandle ,
  OfxTime time ,
  ... ) ;
 

Arguments

  • paramHandle - parameter handle to fetch value from
  • time - at what point in time to look up the parameter
  • ... - one or more pointers to variables of the relevant type to hold the parameter's derivative

Description

This gets the derivative of the parameter at the indicated time.

The varargs needs to be pointer to C variables of the relevant type for this parameter. See OfxParameterSuiteV1::paramGetValue for notes on the varags list.

Only double and colour params can have their derivatives found.

Returns

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