Widget.addOnStyleUpdated

The ::style-updated signal is a convenience signal that is emitted when the #GtkStyleContext::changed signal is emitted on the @widget's associated #GtkStyleContext as returned by gtk_widget_get_style_context().

Note that style-modifying functions like gtk_widget_override_color() also cause this signal to be emitted.

class Widget
void
addOnStyleUpdated
(
void delegate dlg
,)

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