bool OrderClose	(	int	ticket,
		double	lots,
		double	price,
		int	slippage,
		Color	color
	)

Closes opened order

Parameters

ticket	Unique number of the order ticket
lots	Number of lots
price	Closing price
slippage	Value of the maximum price slippage in points
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