TShellTreeView.ShowLines property
Declaration
property ShowLines: ;Description
Not described here; this is what TCustomTreeView.ShowLines says of it:
Enables or disables the horizontal and vertical lines which join nodes in the tree hierarchy.
ShowLines is a
Boolean property used to enable or
disable drawing of lines which connect the nodes on the tree view control.
When enabled, a line is drawn to connect a tree node to its parent, sibling
and child nodes. Values in TreeLineColor and TreeLinePenStyle are used to draw
the connector lines in the DoPaintNode method.
ShowLines is a convenience property; its value is read from and written to the Options for the control. ShowLines contains True when the value tvoShowLines has been included in Options. Changing the value for the property causes Options to be updated to include or exclude tvoShowLines as needed for the Boolean value. The control is redrawn when Options is modified.
The default value for the ShowLines property is True.
An experiment, built from Lazarus main 2dfa93c66e of 10-22-2026. Not the official Lazarus documentation.
