AutoCAD Platform Customization: User Interface, AutoLISP, VBA, and Beyond

Creating and Displaying User Forms

Input from end users is either the key to a flexible and efficient program or its Achilles' heel. It all depends on how you gather and use that input. Up to this point, the input that you have been getting from the user has been requested at the AutoCAD^® Command prompt. There is nothing bad about getting input only from the Command prompt, but it can be a limiting approach.

VBA programs support the ability to implement dialog boxes by adding a UserForm object to a project. Standard interactive controls that you are already familiar with from other Windows-based programs can be added to a user form to get input ...