Passing arguments – PB Docs 125

Passing arguments

In PowerBuilder, you can define external functions that expect arguments
to be passed by reference or by value. When you pass an argument
by reference, the external function receives a pointer to the argument
and can change the contents of the argument and return the changed
contents to PowerBuilder. When you pass the argument by value, the
external function receives a copy of the argument and can change
the contents of the copy of the argument. The changes affect only
the local copy; the contents of the original argument are unchanged.

The syntax for an argument that is passed by reference is:

The syntax for an argument that is passed by value is:


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