The comment property defines text that can be shown in the comment line when the form item becomes current.
The most common use of the comment property is to give information or instructions to the user. This is particularly appropriate when the field accepts only a limited set of values.
The screen location where the message is displayed depends on external configuration. It can be displayed in the COMMENT LINE, or in the STATUSBAR when using a graphical user interface.
If the OPEN WINDOW statement specifies COMMENT LINE OFF, any output to the comment area is hidden even if the window displays a form that includes fields that include the COMMENT property.See the topic on Statusbar in the BDL User Guide.