Tooltip.setCustom

void setCustom(gtk.widget.Widget customWidget = null)

Replaces the widget packed into the tooltip with custom_widget. custom_widget does not get destroyed when the tooltip goes away. By default a box with a #GtkImage and #GtkLabel is embedded in the tooltip, which can be configured using [gtk.tooltip.Tooltip.setMarkup] and [gtk.tooltip.Tooltip.setIcon].

Parameters

customWidget a #GtkWidget, or null to unset the old custom widget.