If you are trying to use the constant inside a class or a form, you need to use the Class/Form Menu item and set the include file there. That will make the constants available to all methods.

If you use #include in a method, only that method can see the constants.

>I follow the VFP 5.0 sample(TASTRADE) to learn VFP, but my program seem doesn't understand the content of the INCLUDE file. It keeps giving variable 'XXX...' is not found. But variable 'XXX...' is in the include file. Please tell me why and how to cirrect it.