## User Interface Manager Object

#GtkUIManager is an object that can construct menu and toolbar widgets from an XML description. These widgets are in turn associated to corresponding actions and action groups.

#GtkUIManager supports merging of menus and toolbars for applications that have multiple components, each with separate sets of commands. For example, a word processor that can embed images may want to have toolbar buttons for Bold and Italic when the cursor is on a text block, but Crop and Brightness/Contrast buttons when the cursor is on an image. These actions, which change depending on the state of the application, can be merged and de-merged from a #GtkUIManager as appropriate.