/**
* gtk_viewport_new:
- * @hadjustment: horizontal adjustment
- * @vadjustment: vertical adjustment
+ * @hadjustment: (allow-none): horizontal adjustment
+ * @vadjustment: (allow-none): vertical adjustment
*
- * Creates a new #GtkViewport with the given adjustments.
+ * Creates a new #GtkViewport with the given adjustments, or with default
+ * adjustments if none are given.
*
* Returns: a new #GtkViewport
*/
window = gdk_window_new (gtk_widget_get_parent_window (widget),
&attributes, attributes_mask);
gtk_widget_set_window (widget, window);
- gdk_window_set_user_data (window, viewport);
+ gtk_widget_register_window (widget, window);
viewport_get_view_allocation (viewport, &view_allocation);
priv->view_window = gdk_window_new (window,
&attributes, attributes_mask);
- gdk_window_set_user_data (priv->view_window, viewport);
+ gtk_widget_register_window (widget, priv->view_window);
attributes.x = - gtk_adjustment_get_value (hadjustment);
attributes.y = - gtk_adjustment_get_value (vadjustment);
attributes.event_mask = event_mask;
priv->bin_window = gdk_window_new (priv->view_window, &attributes, attributes_mask);
- gdk_window_set_user_data (priv->bin_window, viewport);
+ gtk_widget_register_window (widget, priv->bin_window);
child = gtk_bin_get_child (bin);
if (child)
GtkViewport *viewport = GTK_VIEWPORT (widget);
GtkViewportPrivate *priv = viewport->priv;
- gdk_window_set_user_data (priv->view_window, NULL);
+ gtk_widget_unregister_window (widget, priv->view_window);
gdk_window_destroy (priv->view_window);
priv->view_window = NULL;
- gdk_window_set_user_data (priv->bin_window, NULL);
+ gtk_widget_unregister_window (widget, priv->bin_window);
gdk_window_destroy (priv->bin_window);
priv->bin_window = NULL;