ListBox.AddItem 方法

 VIRTUAL METHOD AddItem(
	cItem,
	nItemNumber,
	uRetValue
) AS LONG CLIPPER

[ClipperCallingConventionAttribute(new string[] { ... })]
public override int AddItem(
	__Usual cItem = default,
	__Usual nItemNumber = default,
	__Usual uRetValue = default
)