Language > Widgets > About Tree Widgets

# About Tree Widgets

Tree widgets display information in a hierarchical structure or tree. Branches and sub-branches of the tree can be expanded and collapsed (either programmatically or by the user) to display or hide the information they contain. See WIDGET_TREEfor a complete description of the function used to create tree widgets.

This section discusses the following topics:

- Types of Tree Widgets
- Example: A Simple Tree
- Setting the Tree Selection State
- Making a Tree Entry Visible
- Replacing the Default Bitmaps
- Dragging and Dropping Tree Nodes
- Positioning Tree Nodes
- Using Tree Widget Checkboxes