bool OrderCloseBy	(	int	ticket,
		int	opposite,
		Color	color
	)

Closes an opened order by another opposite opened order

Parameters

ticket	Unique number of the order ticket
opposite	Unique number of the opposite order ticket.
color	Color of the closing arrow on the chart. If the parameter is missing or has CLR_NONE value closing arrow will not be drawn on the chart.

Returns

Returns true if successful, otherwise false. To get additional error information, one has to call the GetLastError() function.