Constants

A constant is a named item that retains its value throughout all operations. The value π, or 3.1415926535, is an example of a numeric constant; the letter A is an example of a character constant.

You can create compile-time constants that exist throughout the operation of a Visual FoxPro application. You can use a constant and know that its value doesn't change during the operation of your application. At design time, you can effect a change throughout an application by changing only the value of a single constant.

A constant can contain any data type value.

For information about defining and undefining constants, see How to: Define a Constant.

See Also

Reference

Variables (Visual FoxPro)

#DEFINE ... #UNDEF Preprocessor Directive

PI( ) Function

Constant is already created with #DEFINE (Error 1725)

#IFDEF | #IFNDEF ... #ENDIF Preprocessor Directive

Data Storage Containers