[ Version ( since = "3.12" ) ]
public void set_popover (Widget? popover)
Sets the Popover that will be popped up when the this is clicked, or null to dissociate any existing popover and disable the button.
If menu_model or popup are set, those objects are dissociated from the this, and those properties are set to null.
| this | |
| popover |
a Popover, or null to unset and disable the button |