Net.Data Programming Guide

Using Built-in Functions

Net.Data provides a large set of built-in functions to simplify Web page development. These functions are already defined by Net.Data, so you do not need to define them in a FUNCTION block. You can simply call these functions anywhere in the macro where a user-defined function can be called.

Built-in functions can return their results in 3 different ways. You can tell how each one returns its results by its prefix:

• DTW_, DTWF_, and DTWR_:The results of the call are returned in an output parameter or no result is returned.DTWF_ and DTWR_ are flat file and Web registry functions, respectively.

• DTW_r, DTWF_r, and DTWR_r: The results are returned to the function call value.

• DTW_m: Multiple results are returned in the parameters passed to the function.

Some built-in functions do not have each type. For more information, see Net.Data Reference Guide.