Many user interface elements share a number of properties in common with each other that describe .
User interface elements such as ribbon buttons, pop-up menu items, toolbar buttons, toolbar controls, and shortcut keys have the following common properties:
Elements must define their parent in the constructor, which also adds the element into the parent object.
In the following sample code, a new button is added to the last position of the Draw toolbar during initialization. An explicit call to the toolbar’s Add() method is not required.
Dim drawToolbar As Toolbar = cs.MenuGroup.Toolbars.FindToolbarWithName("DRAW")
Dim polyLineButton As ToolbarButton = New ToolbarButton(drawToolbar,-1)
Toolbar drawToolbar = cs.MenuGroup.Toolbars.FindToolbarWithName("DRAW");
ToolbarButton polyLineButton = new ToolbarButton(drawToolbar,-1);
CUI elements derive from the VersionableElement base class, which adds a revision number to the element. Newly created or modified elements are tagged with the version number of the current AcCui.dll file.
The MenuMacro class, which represents an action or command, can contain multiple versions of a macro. When calling the macro property, the correct macro for the current version of the AutoCAD program is returned. Iterate through the MenuMacro.Macros collection for other versions of the macro.