gtkTreeViewSetColumnDragFunction
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 GtkTreeViewColumn s 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.
gtkTreeViewSetColumnDragFunction(object, func, user.data = NULL)
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A |
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A function to determine which columns are reorderable, or |
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User data to be passed to |
Derived by RGtkGen from GTK+ documentation
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