For the purpose of discussion, a distinction will be made between subroutines invoked using normal programming language calling mechanisms, and window or dialog procedures invoked by Presentation Manager in response to the application issuing a WinDispatchMsg(), WinPostMsg() or WinSendMsg() call. Window and dialog procedures are discussed in the following section.
When examining application code, it is useful to know the type of event handled or processing carried out by a particular function or subroutine, without the need for detailed examination of the code for that subroutine. This capability can be facilitated by the use of a prefix to the function or subroutine name, which indicates the type of the function or subroutine to the reader.
Since the types of functions carried out within applications may be extremely diverse, no standards will be suggested here. However, readers should note the potential benefits of such a practice, and may wish to adopt a suitable convention for their own applications.