virtual P6R::P6ERR P6R::p6IXpathExpression::setVariableHandler ( p6IXpathVariables pObject  )  [pure virtual]

The calling application uses this method to register a handler to look up external variable values.

While designed to integrate with an XSLT processor this integration point can work with any application that can map variable names to p6IXMLNode components.

Parameters:
pObject [IN] A source for mapping a variable name to value.
Returns:
SuccessP6R::eOk 
FailureP6R::eNotInitializedA successful call to intialize() must be made before calling this funciton.
P6R::eInvalidArgpObject is NULL.
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