Language Reference Guide : System Classes : FormField Class : HasFieldChanged Attribute
 
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HasFieldChanged Attribute
Data Type: smallint
4GL Access: RW
The HasFieldChanged attribute is TRUE if any of the structural attributes of a field, such as site, position, or color, have been changed since the frame was initialized.
The default is FALSE when the form is initialized.
This attribute is primarily useful with form editors. To see whether data has been changed by the end user, use the FullName Attribute (see FullName Attribute) of the FieldObject class.