Used in the TCustomTreeView.OnCustomDraw event.
TTVCustomDrawEvent = procedure (Sender: TCustomTreeView; const ARect: TRect; var DefaultDraw: Boolean) of object;
(Sender: TCustomTreeView; const ARect: TRect; var DefaultDraw: Boolean) ( TTVCustomDrawEvent)();
ComCtrls
This event is used in the TCustomTreeView.OnCustomDraw event.
Sender is the tree-view control that is about to be painted.
ARect is the rectangle that defines the boundaries of the tree-view control.
DefaultDraw specifies whether the control should paint itself after the event handler exits.
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