[ Version ( since = "2.12" ) ]
public void set_custom (Widget? custom_widget)
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
Image and Label is embedded in the tooltip, which
can be configured using set_markup and
set_icon.
| this |
a Tooltip |
| custom_widget |
a Widget, or null to unset the old custom widget. |