RSView Supervisory Edition Installation Guide

3 • PLANNING AN APPLICATION• • • • •Validate operator inputUse VBA logic to validate the operator’s input, for example, to ensure that the value anoperator enters in a numeric input field falls within 10% of the value of another numericinput field.Create custom operator formsUse the RSView SE Client object model to populate VBA form objects with data, for usein graphic displays. For example, use list boxes or combo boxes in graphic displays toallow operators to select options such as recipe items.3 • PlaceholderManipulate the RSView SE Client windowWrite VBA code to arrange graphic displays based on the size of the RSView SE Clientwindow. This allows you to adapt an application dynamically to various screen desktopsizes and resolutions.Send custom messages to the Diagnostics logSend specific messages to the Diagnostics List and Diagnostics log, to notify the operatorof problems with VBA code.Secure the systemThe RSView object model allows you to obtain security information about who is usingthe system, and to use the security information and events to control access to the system.For example, you can restrict a user’s access to a graphic display on a secured computerby creating code that displays the graphic display on a workstation with a specificcomputer name, only when the user is logged in with a particular user name.3-11