The functions in this section provide the ability to read the options for placement directly from a UDF file (a .gph file) in order for an application to decide at runtime the inputs it will use for placing a given UDF. The following functions operate on ProUdfdata. These functions are capable of reading properties from the UDF file so long as the UDF name or path has already been set by ProUdfdataNameSet() or ProUdfdataPathSet().

Some of the data retrieved by the functions in this section uses the same data types as the corresponding ProUdfdata set functions used for placing the UDF (as listed in the earlier section). However, data that you read out of the ProUdfdata is not related to data that you are using to place the UDF. You must explicitly pass each piece of data to the ProUdfdata functions if you want the UDF to be placed with this information.