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1. type ListBoxUpdateHeaderFunc_WithClosures = ListBoxRow -> Maybe ListBoxRow -> Ptr () -> IO ()

   gi-gtk3	GI.Gtk.Callbacks

   Whenever row changes or which row is before row changes this is called, which lets you update the header on row. You may remove or set a new one via listBoxRowSetHeader or just change the state of the current header widget. Since: 3.10

2. drop_closures_ListBoxUpdateHeaderFunc :: ListBoxUpdateHeaderFunc -> ListBoxUpdateHeaderFunc_WithClosures

   gi-gtk3	GI.Gtk.Callbacks

   A simple wrapper that ignores the closure arguments.

3. dynamic_ListBoxUpdateHeaderFunc :: (HasCallStack, MonadIO m, IsListBoxRow a, IsListBoxRow b) => FunPtr C_ListBoxUpdateHeaderFunc -> a -> Maybe b -> Ptr () -> m ()

   gi-gtk3	GI.Gtk.Callbacks

   Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

4. genClosure_ListBoxUpdateHeaderFunc :: MonadIO m => ListBoxUpdateHeaderFunc -> m (GClosure C_ListBoxUpdateHeaderFunc)

   gi-gtk3	GI.Gtk.Callbacks

   Wrap the callback into a GClosure.

5. mk_ListBoxUpdateHeaderFunc :: C_ListBoxUpdateHeaderFunc -> IO (FunPtr C_ListBoxUpdateHeaderFunc)

   gi-gtk3	GI.Gtk.Callbacks

   Generate a function pointer callable from C code, from a C_ListBoxUpdateHeaderFunc.

6. noListBoxUpdateHeaderFunc :: Maybe ListBoxUpdateHeaderFunc

   gi-gtk3	GI.Gtk.Callbacks

   A convenience synonym for Nothing :: Maybe ListBoxUpdateHeaderFunc.

7. noListBoxUpdateHeaderFunc_WithClosures :: Maybe ListBoxUpdateHeaderFunc_WithClosures

   gi-gtk3	GI.Gtk.Callbacks

   A convenience synonym for Nothing :: Maybe ListBoxUpdateHeaderFunc_WithClosures.

8. wrap_ListBoxUpdateHeaderFunc :: Maybe (Ptr (FunPtr C_ListBoxUpdateHeaderFunc)) -> ListBoxUpdateHeaderFunc_WithClosures -> C_ListBoxUpdateHeaderFunc

   gi-gtk3	GI.Gtk.Callbacks

   Wrap a ListBoxUpdateHeaderFunc into a C_ListBoxUpdateHeaderFunc.

9. pattern STYLE_CLASS_HEADER :: Text

   gi-gtk3	GI.Gtk.Constants

   A CSS class to match a header element. Refer to individual widget documentation for used style classes.

10. pattern STYLE_REGION_COLUMN_HEADER :: Text

    gi-gtk3	GI.Gtk.Constants

    Deprecated: (Since version 3.20)Don't use regions.

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