set_custom

Description:

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 `GtkImage` and `GtkLabel` is embedded in the tooltip, which can be configured using set_markup and set_icon.

Parameters:

this	a `GtkTooltip`
custom_widget	a `GtkWidget`, or null to unset the old custom widget.