Callback ProRelationReadFunction
Description
This is the function called to evaluate a custom relation function invoked on the right hand side of a relation.
Synopsis
#include <ProRelSet.h>
(*ProRelationReadFunction) | |
( ProRelset* pro_relset /* (In) The relation set. */ ProMdl pro_model /* (In) The model that owns the relation set. */ char* extfunc_name /* (In) The name of the external function. */ ProParamvalue* pro_args /* (In) ProArray of argument values. */ ProAppData app_data /* (In) The application data passed to registration function. */ ProParamvalue* pro_result /* (Out) The result of the relation function calculation. */ ) |
Returns
The calculation succeeded. | |
Any other error | The calculation failed; the relation has an error. |
User Guide References
Parent topic