gtkTreeSortableSetDefaultSortFunc {RGtk2} | R Documentation

## gtkTreeSortableSetDefaultSortFunc

### Description

Sets the default comparison function used when sorting to be `sort.func`. If the current sort column id of `sortable` is `GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID`, then the model will sort using this function.

### Usage

    gtkTreeSortableSetDefaultSortFunc(object, sort.func, user.data = NULL)

### Arguments

``object`` | A `GtkTreeSortable`
``sort.func`` | The comparison function
``user.data`` | User data to pass to `sort.func`, or `NULL`. [ allow-none ]

### Details

If `sort.func` is `NULL`, then there will be no default comparison function. This means that once the model has been sorted, it can't go back to the default state. In this case, when the current sort column id of `sortable` is `GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID`, the model will be unsorted.

### Author(s)

Derived by RGtkGen from GTK+ documentation

[Package RGtk2 version 2.20.36.3 Index]