Runtime Data Structures

Runtime data structures are structures or blocks of memory that hold data when user is working with an application. You should know what is happening to each form at runtime. You should know what is in a runtime structure at a given event point in the runtime process.

The runtime system dynamically creates runtime data structures. For example, if a form contains hidden controls, the system allocates memory for those controls even though they are not visible on the form. When you pass processing option (PO) values in a form, the system allocates memory to store the PO value.