TCustomTreeView.OnCustomDrawItem property
Event handler signalled to custom draw an item (tree node) on the control.
Declaration
property OnCustomDrawItem: TTVCustomDrawItemEvent read FOnCustomDrawItem write FOnCustomDrawItem;Description
OnCustomDrawItem is a
TTVCustomDrawItemEvent property
with the event handler signalled to custom-draw the tree nodes displayed on
the tree view control. OnCustomDrawItem is signalled from the CustomDrawItem
method, and occurs during processing performed in the PaintNode method for the
control.
Arguments to the event handler include:
- Sender
- The tree view control for the event notification.
- Node
- The TTreeNode instance with the node custom-drawn in the handler routine.
- State
- TCustomDrawState value with the drawing state for the tree node.
- DefaultDraw
- Variable Boolean argument used to indicate whether the PaintNode process can continue. Set to False in the handler routine to halt further paint operations for the tree node.
If either OnCustomDrawItem or OnAdvancedCustomDrawItem are assigned, the IsCustomDrawn method returns True.
See also
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.