This section describes data types in C language. A data type name beginning with "P" (for example, PMCI_CONNECTOR_PARMS) is likely to be a pointer to another data type (in this instance, MCI_CONNECTOR_PARMS). If no data type definition can be found in this section for a data type name "Pxxxxxx," it becomes a pointer to the data type "xxxxxx," for which a definition should be found in this section. The implicit type definition needed for such a pointer "Pxxxxxx" is:
typedef xxxxxx *Pxxxxxx;
Such definitions are provided by means of the system header files.