Changing standard functions

The standard Isah Mobile functions can be expanded or modified. You can do so by inheriting from the function class and/or the form class of a standard function and inheriting virtual methods in the derived class(es). This allows you to reuse existing code and logic.

You need to register the new function:

• With the name of the standard function if you want to replace the standard function by the custom function
• With a new internal name if you want to keep the standard function and add the custom function to the list of available Isah Mobile functions.

See the appendix for a list of the standard Isah Mobile functions, including the corresponding internal names, function classes and form classes.