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