TTreeViewOption enumeration

In unit ComCtrls

TTreeViewOption - enumerated type containing the permissible values for Options in TreeViews.

Declaration

pascal

TTreeViewOption = (tvoAllowMultiselect,tvoAutoExpand,tvoAutoInsertMark,
 tvoAutoItemHeight,tvoHideSelection,tvoHotTrack,
 tvoKeepCollapsedNodes,tvoReadOnly,
 tvoRightClickSelect,tvoRowSelect,tvoShowButtons,
 tvoShowLines,tvoShowRoot,tvoShowSeparators,
 tvoToolTips,tvoNoDoubleClickExpand,tvoThemedDraw,
 tvoEmptySpaceUnselect)

Description

TTreeViewOption - enumerated type containing the permissible values for Options in TreeViews.

Values

`tvoAllowMultiselect`	Allows selection of several tree-items, e.g. using Ctrl+click and Shift+click. Has the same affect as setting the MultiSelect property to True.
`tvoAutoExpand`	Automatically expands child nodes for a tree-item when user clicks it, or the item is activated by code. Has the same affect as setting the AutoExpand property to True.
`tvoAutoInsertMark`	Allows painting a horizontal line below a tree-item under cursor when mouse moves. Good for drag-drop.
`tvoAutoItemHeight`	Detect height of a tree-item based on current font and icons.
`tvoHideSelection`	If a control looses focus, then don't paint selection for selected tree-item. Same as HideSelection property.
`tvoHotTrack`	Additionally highlight/underline a tree-item when mouse is over it. Same as HotTrack property.
`tvoKeepCollapsedNodes`	When some items change, keep previously folded tree-items in folded state.
`tvoReadOnly`	Don't allow to change item captions by clicking on items with a delay. Same as ReadOnly property.
`tvoRightClickSelect`	Right-click also selects a tree-item. Otherwise it only calls PopupMenu. Same as RightClickSelect property.
`tvoRowSelect`	When a tree-item is selected, paint selection background with full width. Same as RowSelect property.
`tvoShowButtons`	Show expand/collapse (fold/unfold) icons at left side for nodes with sub-nodes. Same as ShowButtons property.
`tvoShowLines`	Show vertical lines at left side which paint tree structure for nested nodes. Same as ShowLines property.
`tvoShowRoot`	Show the root tree-item which is always present in code but may be hidden for user. Same as ShowRoot property.
`tvoShowSeparators`	Show horizontal lines below all tree-items.
`tvoToolTips`	Show tooltip (hint) for a tree-item when the item is too long to fit by width and mouse is over it. Same as ToolTips property.
`tvoNoDoubleClickExpand`	Prevents toggling the expanded state for the tree view item when it is double clicked.
`tvoThemedDraw`	Tree view item is drawn using settings from theme services.
`tvoEmptySpaceUnselect`	Indicates if empty space can be be drawn below unselected items in the tree view.

An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.