DEV-Level Classes

DEV-level class libraries are located in the VPM Enterprise home directory (normally, \VPME91) and have names that begin with "DEV".

DEV-level classes are subclasses of and identical to the classes in the corresponding VPM-level class library.You will find the following DEV-level class libraries:

Visual Class Library

Purpose

DEVAPP.VCX

Subclasses of the VPMAPP.VCX classes. 

DEVCTRLS.VCX

Subclasses of the VPMCTRLS.VCX classes.

DEVDATAHANDLER.VCX

Subclasses of the VPMDATAHANDLER.VCX classes.

DEVDATAHANDLER
BUSINESSRULES.VCX

Subclass of the VPMDATAHANDLERBUSINESSRULES.
VCX class.

DEVDD.VCX

Subclasses of the VPMDD.VCX classes.

DEVFORMS.VCX

Subclasses of the VPMFORMS.VCX classes.

DEVGEN.VCX

Subclasses of the VPMGEN.VCX classes.

DEVINT.VCX

Subclasses of the VPMINT.VCX classes.

DEVRPT.VCX

Subclasses of the VPMRPT.VCX classes.

DEVSEC.VCX

Subclasses of the VPMSEC.VCX classes.

If you change the classes in the DEV-level class libraries, your changes will be inherited by applications you are creating and any future applications you create.

Tip: “DEV” is used to name these class libraries because we recommend that  a DEVeloper use them to make class changes that should affect all applications that the developer creates. When we release a VPME update, new DEV class libraries are not normally needed. Therefore, changes made to DEV classes will not normally need to be reapplied after a VPME update is installed.

 

More:

PRO-Level Classes