set_destroy_count_func

Description:

[ Version ( deprecated = true , deprecated_since = "3.4" ) ]
public void set_destroy_count_func (owned TreeDestroyCountFunc? func)

Warning: set_destroy_count_func is deprecated since 3.4.

This function should almost never be used.

Note:

Accessibility does not need the function anymore.

It is meant for private use by ATK for determining the number of visible children that are removed when the user collapses a row, or a row is deleted.

Parameters:

this	A TreeView
func	Function to be called when a view row is destroyed, or null
data	User data to be passed to `func`, or null
destroy	Destroy notifier for `data`, or null