Variable Names

Variables are storage places in a program and can contain numbers and strings. Variables are stored in the computer's memory. Variables are used with keywords and functions, such as char and MATH_NUMERIC, and must be declared at the beginning of the program.

A variable name can be up to 32 characters in length. Be as descriptive as possible and capitalize the first letter of each word.

You must use Hungarian prefix notation for all variable names, as shown in this table:

Prefix	Description
c	JCHAR
sz	NULL-terminated JCHAR string
z	ZCHAR
zz	NULL-terminated ZCHAR string
n	short
l	long
b	Boolean
mn	MATH_NUMERIC
jd	JDEDATE
lp	long pointer
i	integer
by	byte
ul	unsigned long (identifier)
us	unsigned Short
ds	data structures
h	handle
e	enumerated types
id	id long integer, JDE data type for returns
ut	JDEUTIME
sz	VARCHAR