TreeViewColumnDropFunc (
  GtkTreeView* tree_view,
  GtkTreeViewColumn* column,
  GtkTreeViewColumn* prev_column,
  GtkTreeViewColumn* next_column,
  gpointer data


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.


tree_view GtkTreeView

A GtkTreeView

 Ownership is not transferred
column GtkTreeViewColumn

The GtkTreeViewColumn being dragged

 Ownership is not transferred
prev_column GtkTreeViewColumn

A GtkTreeViewColumn on one side of column

 Ownership is not transferred
next_column GtkTreeViewColumn

A GtkTreeViewColumn on the other side of column

 Ownership is not transferred
data gpointer

user data

Return value

Returns: gboolean

TRUE, if column can be dropped in this spot