TreeViewColumnDropFunc
Description:
[ CCode ( instance_pos = 4.9 ) ]
public delegate bool TreeViewColumnDropFunc (TreeView tree_view, TreeViewColumn column, TreeViewColumn prev_column, TreeViewColumn next_column)
public delegate bool TreeViewColumnDropFunc (TreeView tree_view, TreeViewColumn column, TreeViewColumn prev_column, TreeViewColumn next_column)
Function type for determining whether column can be dropped in a particular spot (as determined by prev_column and
next_column).
In left to right locales, prev_column is on the left of the potential drop spot, and next_column is on the right. In
right to left mode, this is reversed. This function should return true if the spot is a valid drop spot.
Please note that returning true does not actually indicate that the column drop was made, but is meant only to
indicate a possible drop spot to the user.
Parameters:
| tree_view |
A `GtkTreeView` |
| column |
The `GtkTreeViewColumn` being dragged |
| prev_column |
A `GtkTreeViewColumn` on one side of |
| next_column |
A `GtkTreeViewColumn` on the other side of |
| data |
user data |
Returns:
|
true, if |
Namespace: Gtk
Package: gtk4