gtkUIManagerEnsureUpdate: gtkUIManagerEnsureUpdate
In RGtk2: R Bindings for Gtk 2.8.0 and Above

Description Usage Arguments Details Author(s)

Makes sure that all pending updates to the UI have been completed.

1	gtkUIManagerEnsureUpdate(object)

object

a GtkUIManager

This may occasionally be necessary, since GtkUIManager updates the UI in an idle function. A typical example where this function is useful is to enforce that the menubar and toolbar have been added to the main window before showing it:

window$add(vbox, show = F)
gSignalConnect(merge, "add_widget", add_widget, vbox)
merge$addUiFromFile("my-menus")
merge$addUiFromFile("my-toolbars")
merge$ensureUpdate() 
window$showAll()