Method
GtkTreeViewset_column_drag_function
deprecated: 4.10
Declaration [src]
void
gtk_tree_view_set_column_drag_function (
  GtkTreeView* tree_view,
  GtkTreeViewColumnDropFunc func,
  gpointer user_data,
  GDestroyNotify destroy
)
Description [src]
Sets a user function for determining where a column may be dropped when
dragged.  This function is called on every column pair in turn at the
beginning of a column drag to determine where a drop can take place.  The
arguments passed to func are: the tree_view, the GtkTreeViewColumn being
dragged, the two GtkTreeViewColumns determining the drop spot, and
user_data.  If either of the GtkTreeViewColumn arguments for the drop spot
are NULL, then they indicate an edge.  If func is set to be NULL, then
tree_view reverts to the default behavior of allowing all columns to be
dropped everywhere.
Deprecated since: 4.10
Use GtkListView or GtkColumnView instead.
Parameters
- func
- 
            Type: GtkTreeViewColumnDropFuncA function to determine which columns are reorderable. The argument can be NULL.
- user_data
- 
            Type: gpointerUser data to be passed to func.The argument can be NULL.The data is owned by the caller of the function. 
- destroy
- 
            Type: GDestroyNotifyDestroy notifier for user_data.The argument can be NULL.