Document.CustomUI property (Visio)
Gets or sets the Ribbon XML string that is passed to the document to customize the Microsoft Office Fluent user interface. Read/write.
expression A variable that represents a Document object.
When you set the CustomUI property value, Microsoft Visio does not perform validation on the Ribbon XML. Instead, the XML is persisted in the document file and validated the next time that the document loads.
Support and feedback
Have questions or feedback about Office VBA or this documentation? Please see Office VBA support and feedback for guidance about the ways you can receive support and provide feedback.