int iHighest	(	string	symbol,
		int	timeframe,
		int	type,
		int	count = WHOLE_ARRAY,
		int	start = 0
	)

Returns the shift of the maximum value over a specific number of bars depending on type

Parameters

symbol	Symbol the data of which should be used to calculate indicator. NULL means the current symbol
timeframe	Timeframe. It can be any of following values: PERIOD_CURRENT 0 Current timeframe PERIOD_M1 1 1 minute PERIOD_M5 5 5 minutes PERIOD_M15 15 15 minutes PERIOD_M30 30 30 minutes PERIOD_H1 60 1 hour PERIOD_H4 240 4 hours PERIOD_D1 1440 1 day PERIOD_W1 10080 1 week PERIOD_MN1 43200 1 month PERIOD_M2 2 2 minutes PERIOD_M3 3 3 minutes PERIOD_M4 4 4 minutes PERIOD_M6 6 6 minutes PERIOD_M10 10 10 minutes PERIOD_M12 12 12 minutes PERIOD_M20 20 20 minutes PERIOD_H2 120 2 hours PERIOD_H3 180 3 hours PERIOD_H6 360 6 hours PERIOD_H8 480 8 hours PERIOD_H12 720 12 hours
type	Series array identifier. It can be any of the Series array identifier values: MODE_OPEN 0 Open price MODE_LOW 1 Low price MODE_HIGH 2 High price MODE_CLOSE 3 Close price MODE_VOLUME 4 Volume, used in iLowest() and iHighest() functions MODE_TIME 5 Bar open time, used in ArrayCopySeries() function
count	Number of bars (in direction from the start bar to the back one) on which the search is carried out
start	Shift showing the bar, relative to the current bar, that the data should be taken from

Returns

The shift of the maximum value over a specific number of bars or -1 if error. To check errors, one has to call the GetLastError() function.