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1. type ComboBoxFormatEntryTextCallback = Text -> IO Text

   gi-gtk4	GI.Gtk.Objects.ComboBox

   Emitted to allow changing how the text in a combo box's entry is displayed. See ComboBox:hasEntry. Connect a signal handler which returns an allocated string representing path. That string will then be used to set the text in the combo box's entry. The default signal handler uses the text from the ComboBox:entryTextColumn model column. Here's an example signal handler which fetches data from the model and displays it in the entry.

   c code

   static char *
   format_entry_text_callback (GtkComboBox *combo,
   const char *path,
   gpointer     user_data)
   {
   GtkTreeIter iter;
   GtkTreeModel model;
   double       value;
   
   model = gtk_combo_box_get_model (combo);
   
   gtk_tree_model_get_iter_from_string (model, &iter, path);
   gtk_tree_model_get (model, &iter,
   THE_DOUBLE_VALUE_COLUMN, &value,
   -1);
   
   return g_strdup_printf ("%g", value);
   }
   

2. afterComboBoxFormatEntryText :: (IsComboBox a, MonadIO m) => a -> ((?self :: a) => ComboBoxFormatEntryTextCallback) -> m SignalHandlerId

   gi-gtk4	GI.Gtk.Objects.ComboBox

   Connect a signal handler for the formatEntryText signal, to be run after the default handler. When overloading is enabled, this is equivalent to

   after comboBox #formatEntryText callback
   

   By default the object invoking the signal is not passed to the callback. If you need to access it, you can use the implit ?self parameter. Note that this requires activating the ImplicitParams GHC extension.

3. comboBoxPopupForDevice :: (HasCallStack, MonadIO m, IsComboBox a, IsDevice b) => a -> b -> m ()

   gi-gtk4	GI.Gtk.Objects.ComboBox

   Deprecated: (Since version 4.10)Use DropDown

4. onComboBoxFormatEntryText :: (IsComboBox a, MonadIO m) => a -> ((?self :: a) => ComboBoxFormatEntryTextCallback) -> m SignalHandlerId

   gi-gtk4	GI.Gtk.Objects.ComboBox

   Connect a signal handler for the formatEntryText signal, to be run before the default handler. When overloading is enabled, this is equivalent to

   on comboBox #formatEntryText callback
   

5. constantExpressionNewForValue :: (HasCallStack, MonadIO m) => GValue -> m ConstantExpression

   gi-gtk4	GI.Gtk.Objects.ConstantExpression

   Creates an expression that always evaluates to the given value.

6. dialogGetResponseForWidget :: (HasCallStack, MonadIO m, IsDialog a, IsWidget b) => a -> b -> m Int32

   gi-gtk4	GI.Gtk.Objects.Dialog

   Deprecated: (Since version 4.10)Use Window instead

7. dialogGetWidgetForResponse :: (HasCallStack, MonadIO m, IsDialog a) => a -> Int32 -> m (Maybe Widget)

   gi-gtk4	GI.Gtk.Objects.Dialog

   Deprecated: (Since version 4.10)Use Window instead

8. dragIconCreateWidgetForValue :: (HasCallStack, MonadIO m) => GValue -> m (Maybe Widget)

   gi-gtk4	GI.Gtk.Objects.DragIcon

   Creates a widget that can be used as a drag icon for the given value. Supported types include strings, GdkRGBA and GtkTextBuffer. If GTK does not know how to create a widget for a given value, it will return Nothing. This method is used to set the default drag icon on drag-and-drop operations started by GtkDragSource, so you don't need to set a drag icon using this function there.

9. dragIconGetForDrag :: (HasCallStack, MonadIO m, IsDrag a) => a -> m Widget

   gi-gtk4	GI.Gtk.Objects.DragIcon

   Gets the GtkDragIcon in use with drag. If no drag icon exists yet, a new one will be created and shown.

10. constructDropTargetFormats :: (IsDropTarget o, MonadIO m) => ContentFormats -> m (GValueConstruct o)

    gi-gtk4	GI.Gtk.Objects.DropTarget

    Construct a GValueConstruct with valid value for the “formats” property. This is rarely needed directly, but it is used by new.

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