User's Guide > Core: Features > Reading UDF Properties > Variable Parameters
Variable Parameters
Functions Introduced:
• ProUdfdataVarparamsGet()
• ProUdfvarparamOwnerGet()
• ProUdfvarparamNameGet()
• ProUdfvarparamDefaultvalueGet()
• ProUdfvarparamProarrayFree()
Use the function ProUdfdataVarparamsGet() to obtain an array of available variant parameters and/or annotation values that can optionally be set when placing this UDF. You can use the function ProUdfvarparamProarrayFree() to free this ProArray of variant items.
Note:
 
The handles obtained when the function ProUdfdataVarparamsGet() is called are not automatically assigned to the UDF for placement. In order to place the UDF with a user-defined variant parameter or annotation value, you must use ProUdfdataVarparamAdd().
Use the function ProUdfvarparamOwnerGet() to obtain the feature or annotation element that owns this variant parameter or annotation value.
Use the function ProUdfvarparamNameGet() to obtain the name or the symbol of the variant parameter or annotation value.
Use the function ProUdfvarparamDefaultvalueGet() to obtain the default value for the variant parameter or annotation value.
Parent topic 
Reading UDF Properties
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