gtk:tree-view-fixed-height-mode (object)

object -- a gtk:tree-view widget
enable -- true to enable fixed height mode

The accessor for the fixed-height-mode slot gets or sets whether fixed height mode is turned on for the tree view.

Fixed height mode speeds up the tree view by assuming that all rows have the same height. Only enable this option if all rows are the same height and all columns have the :fixed value of the gtk:tree-view-column-sizing enumeration. The gtk:tree-view implementation is deprecated since 4.10. Please do not use it in newly written code.