Menu.InsertItem 方法

 VIRTUAL METHOD InsertItem(
	nItemID,
	xNewItem,
	nBeforeID
) AS USUAL CLIPPER

[ClipperCallingConventionAttribute(new string[] { ... })]
public virtual __Usual InsertItem(
	__Usual nItemID = default,
	__Usual xNewItem = default,
	__Usual nBeforeID = default
)