Hi, in need help to modify this Trendlines.mq4 to EA ..

Code:
-----------------------

//+------------------------------------------------------------------+
//| Trendlines.mq4 |
//| Copyright 2006, John Hitt |
//| jhitt@kanji.dyndns.org |
//+------------------------------------------------------------------+
#property copyright "Copyright 2006, John Hitt"
#property link "jhitt@kanji.dyndns.org"

#property indicator_chart_window

extern color H4_R=RoyalBlue;
extern color H4_S=FireBrick;
extern color H1_R=RoyalBlue;
extern color H1_S=FireBrick;
extern color M15_R=RoyalBlue;
extern color M15_S=FireBrick;

#define RESISTANCE 1
#define SUPPORT 2

//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
//---- indicators

//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function |
//+------------------------------------------------------------------+
int deinit()
{
//----
ObjectDelete("H4_R");
ObjectDelete("H4_S");
ObjectDelete("H1_R");
ObjectDelete("H1_S");
ObjectDelete("M15_R");
ObjectDelete("M15_S");
ObjectDelete("M5_R");
ObjectDelete("M5_S");
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start()
{
datetime currentbar = 0;

if (currentbar != Time[0])
{
switch (Period())
{
case PERIOD_H4:
Draw_H4_Trends();
break;
case PERIOD_H1:
Draw_H4_Trends();
Draw_H1_Trends();
break;
case PERIOD_M15:
Draw_H1_Trends();
Draw_M15_Trends();
break;
case PERIOD_M5:
Draw_M15_Trends();
break;
}
}

return(0);
}


void Draw_M15_Trends()
{
int sbar=0;
int ebar=0;
int i;
double rate_array[][6];

ArrayCopyRates(rate_array, Symbol(), PERIOD_M15);

for (i=2; i < Bars; i++)
{
if (HigherHigh(i, 1, rate_array) == true)
{
//Print("HiherHigh: ", i);
if (ebar == 0)
ebar = i;
else if (sbar == 0 && rate_array[i][3] > rate_array[ebar][3]) // use 3 for high
sbar = i;
}
if (sbar !=0 && ebar !=0)
break;
}
DrawTrendline ("M15_R", ebar, sbar, PERIOD_M15, RESISTANCE, rate_array);

ebar = 0;
sbar = 0;

for (i=2; i < Bars; i++)
{
if (LowerLow(i, 1, rate_array) == true)
{
if (ebar == 0)
ebar = i;
else if (sbar == 0 && rate_array[i][2] < rate_array[ebar][2]) // use 2 for low
sbar = i;
}
if (sbar !=0 && ebar !=0)
break;
}
DrawTrendline ("M15_S", ebar, sbar, PERIOD_M15, SUPPORT, rate_array);

}

void Draw_H1_Trends()
{
int sbar=0;
int ebar=0;
int i;
double rate_array[][6];

ArrayCopyRates(rate_array, Symbol(), PERIOD_H1);

for (i=2; i < Bars; i++)
{
if (HigherHigh(i, 1, rate_array) == true)
{
//Print("HiherHigh: ", i);
if (ebar == 0)
ebar = i;
else if (sbar == 0 && rate_array[i][3] > rate_array[ebar][3]) // use 3 for high
sbar = i;
}
if (sbar !=0 && ebar !=0)
break;
}
DrawTrendline ("H1_R", ebar, sbar, PERIOD_H1, RESISTANCE, rate_array);

ebar = 0;
sbar = 0;

for (i=2; i < Bars; i++)
{
if (LowerLow(i, 1, rate_array) == true)
{
if (ebar == 0)
ebar = i;
else if (sbar == 0 && rate_array[i][2] < rate_array[ebar][2]) // use 2 for low
sbar = i;
}
if (sbar !=0 && ebar !=0)
break;
}
DrawTrendline ("H1_S", ebar, sbar, PERIOD_H1, SUPPORT, rate_array);

}

void Draw_H4_Trends()
{
int sbar=0;
int ebar=0;
int i;
double rate_array[][6];

ArrayCopyRates(rate_array, Symbol(), PERIOD_H4);

for (i=2; i < Bars; i++)
{
if (HigherHigh(i, 1, rate_array) == true)
{
//Print("HiherHigh: ", i);
if (ebar == 0)
ebar = i;
else if (sbar == 0 && rate_array[i][3] > rate_array[ebar][3]) // use 3 for high
sbar = i;
}
if (sbar !=0 && ebar !=0)
break;
}
DrawTrendline ("H4_R", ebar, sbar, PERIOD_H4, RESISTANCE, rate_array);

ebar = 0;
sbar = 0;

for (i=2; i < Bars; i++)
{
if (LowerLow(i, 1, rate_array) == true)
{
if (ebar == 0)
ebar = i;
else if (sbar == 0 && rate_array[i][2] < rate_array[ebar][2]) // use 2 for low
sbar = i;
}
if (sbar !=0 && ebar !=0)
break;
}
DrawTrendline ("H4_S", ebar, sbar, PERIOD_H4, SUPPORT, rate_array);
}

bool HigherHigh (int point, int shift, double array[][6])
{
if (shift == 0)
return (true);

if (array[point][3] >= array[point+shift][3] && array[point][3] >= array[point-shift][3])
{
if (array[point][3] == array[point+shift][3] || array[point][3] == array[point-shift][3])
{
if ((point - shift - 1) == 0)
return (false);
if (array[point][3] > array[point+shift+1][3] && array[point][3] > array[point-shift-1][3])
return (HigherHigh (point, shift-1, array));
else
return (false);
} else {
return (HigherHigh (point, shift-1, array));
}
}
else
return (false);
}

bool LowerLow (int point, int shift, double array[][6])
{
if (shift == 0)
return (true);

if (array[point][2] <= array[point+shift][2] && array[point][2] <= array[point-shift][2])
{
if (array[point][2] == array[point+shift][2] || array[point][2] == array[point-shift][2])
{
if ((point-shift-1) == 0)
return (false);
if (array[point][2] < array[point+shift+1][2] && array[point][2] < array[point-shift-1][2])
return(LowerLow (point, shift-1, array));
else
return (false);
} else {
return(LowerLow (point, shift-1, array));
}
}
else
return (false);
}

int GetRealPosition(int p1, double array[][6], int which, datetime value, double peak)
{
int i;

for (i=0; i < Bars; i++)
{
if (array[i][0] == value || array[i][0] < value)
{
if (which == RESISTANCE)
{
if (array[i][3] == peak) return (i);
if (array[i-1][3] == peak) return (i-1);
if (array[i-2][3] == peak) return (i-2);
if (array[i-3][3] == peak) return (i-3);
} else {
if (array[i][2] == peak) return (i);
if (array[i-1][2] == peak) return (i-1);
if (array[i-2][2] == peak) return (i-2);
if (array[i-3][2] == peak) return (i-3);
}
if (array[i][0] < value) return (i);
}
}
return (-1);
}

int DrawTrendline (string name, int p1, int p2, int timeframe, int which, double r_array[][6])
{
color hue;
int thickness = 1;
int style = STYLE_DASH;
double array[][6];

ArrayCopyRates(array, Symbol(), Period());

if (which == RESISTANCE)
{
hue = RoyalBlue;
if (Period() != timeframe)
{
p1 = GetRealPosition(p1, array, which, r_array[p1][0], r_array[p1][3]);
p2 = GetRealPosition(p2, array, which, r_array[p2][0], r_array[p2][3]);
}
}
else
{
hue = FireBrick;
if (Period() != timeframe)
{
p1 = GetRealPosition(p1, array, which, r_array[p1][0], r_array[p1][2]);
p2 = GetRealPosition(p2, array, which, r_array[p2][0], r_array[p2][2]);
}
}

switch(timeframe)
{
case PERIOD_H4:
thickness = 2;
style = STYLE_SOLID;
if (which == RESISTANCE)
hue = H4_R;
else
hue = H4_S;
break;
case PERIOD_H1:
style = STYLE_SOLID;
thickness = 1;
if (which == RESISTANCE)
hue = H1_R;
else
hue = H1_S;
break;
case PERIOD_M15:
style = STYLE_DASHDOTDOT;
thickness = 1;
if (which == RESISTANCE)
hue = M15_R;
else
hue = M15_S;
break;
}

if (ObjectFind(name) < 0)
{
if (which == SUPPORT)
ObjectCreate(name, OBJ_TREND, 0, array[p2][0], array[p2][2], array[p1][0], array[p1][2]);
else
ObjectCreate(name, OBJ_TREND, 0, array[p2][2], array[p2][3], array[p1][0], array[p1][3]);

ObjectSet(name, OBJPROP_COLOR, hue);
ObjectSet(name, OBJPROP_RAY, true);
ObjectSet(name, OBJPROP_BACK, true);
ObjectSet(name, OBJPROP_WIDTH, thickness);
ObjectSet(name, OBJPROP_STYLE, style);
}

if (which == SUPPORT)
{ // Lows (0 == Time)
ObjectMove (name, 0, array[p2][0], array[p2][2]);
ObjectMove (name, 1, array[p1][0], array[p1][2]);
}
else
{ // Highs
ObjectMove (name, 0, array[p2][0], array[p2][3]);
ObjectMove (name, 1, array[p1][0], array[p1][3]);
}

ObjectsRedraw();
return(0);
}
//----------------------------------------------------------------------


Thanks,
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