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Reference for unit 'Controls' (#lcl)

TCustomControl.DestroyWnd

Destroys the handle for the Canvas and the interface object.

Declaration

Source position: controls.pp line 2485

protected procedure TCustomControl.DestroyWnd; override;

DestroyWnd is an overridden method in TCustomControl. It ensures that the Handle in Canvas is freed before calling the inherited method.

TCustomControl.Canvas		The drawing surface for the control.
TWinControl.DestroyWnd		Destroys the interface object (widget).
TControlCanvas.FreeHandle		Frees the Handle for the control canvas, and its device context when assigned.