GtkViewport An adapter which makes widgets scrollable The #GtkViewport widget acts as an adaptor class, implementing scrollability for child widgets that lack their own scrolling capabilities. Use #GtkViewport to scroll child widgets such as #GtkTable, #GtkBox, and so on. If a widget has native scrolling abilities, such as #GtkTextView, #GtkTreeView or #GtkIconview, it can be added to a #GtkScrolledWindow with gtk_container_add(). If a widget does not, you must first add the widget to a #GtkViewport, then add the viewport to the scrolled window. The convenience function gtk_scrolled_window_add_with_viewport() does exactly this, so you can ignore the presence of the viewport. #GtkScrolledWindow, #GtkAdjustment @viewport: the object which received the signal. @arg1: @arg2: @hadjustment: @vadjustment: @Returns: @viewport: @Returns: @viewport: @Returns: @viewport: @adjustment: @viewport: @adjustment: @viewport: @type: @viewport: @Returns: @viewport: @Returns: