GtkTreeViewGridLines

enum Gtk.TreeViewGridLines

Used to indicate which grid lines to draw in a tree view.

Name	Description
`GTK_TREE_VIEW_GRID_LINES_NONE`	No grid lines.
`GTK_TREE_VIEW_GRID_LINES_HORIZONTAL`	Horizontal grid lines.
`GTK_TREE_VIEW_GRID_LINES_VERTICAL`	Vertical grid lines.
`GTK_TREE_VIEW_GRID_LINES_BOTH`	Horizontal and vertical grid lines.