TCustomTreeView.AccessibilityOn property
Turns accessibility on or off to speed up the control.
Declaration
property AccessibilityOn: Boolean read FAccessibilityOn write FAccessibilityOn default True;Description
AccessibilityOn is provided for the situation where a tree view contains a huge number of items, lets say 10,000+. In this case, accessibility might affect the responsiveness and drawing performance for the tree view control. Setting AccessibilityOn to False will likely make things faster.
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.