on button, or null.
ToolButton.getIconWidget
gtk.widget.Widget getIconWidget()Return the widget used as icon widget on button. See [gtk.tool_button.ToolButton.setIconWidget].
Returns
The widget used as icon
gtk.widget.Widget getIconWidget()Return the widget used as icon widget on button. See [gtk.tool_button.ToolButton.setIconWidget].
on button, or null.