Please, do no post coding question in the ProRealTime assistance forum. I moved your topic into the indicator section.
Use this code and with the alert tool, check if the variable “alert” is equal to 1.
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//PRC_RevertSignal Three Line Break | indicator
//22.06.2017
//Nicolas @ www.prorealcode.com
//Sharing ProRealTime knowledge
//translated from Nanotrader
if barindex = 1 then //barindex
if (close >= open ) then
xtrend = 1
trend = xtrend
xu = close
xu1 = open
xu2 = open
xu3 = open
CL = xu
OP = xu1
LL = OP
HH = CL
else
xtrend = - 1
trend = xtrend
xu = close
xu1 = open
xu2 = open
xu3 = open
CL = xu
OP = xu1
LL = CL
HH = OP
endif
else //barindex continue
if (xtrend = 1 ) then
if (close > xu) then
trend = xtrend
xu3 = xu2
xu2 = xu1
xu1 = xu
xu = close
CL = xu
OP = xu1
LL = OP
HH = CL
elsif (close < xu3) then
xtrend = - 1
trend = xtrend
xu = close
xu2 = xu1
xu3 = xu1
CL = xu
OP = xu1
LL = CL
HH = OP
else
trend = xtrend
CL = CL[ 1 ]
OP = OP[ 1 ]
LL = LL[ 1 ]
HH = HH[ 1 ]
endif
else //xtrend <>1
if (close > xu3) then
xtrend = 1
trend = xtrend
xu = close
xu2 = xu1
xu3 = xu1
CL = xu
OP = xu1
LL = OP
HH = CL
elsif (close < xu) then
trend = xtrend
xu3 = xu2
xu2 = xu1
xu1 = xu
xu = close
CL = xu
OP = xu1
LL = CL
HH = OP
else
trend = xtrend
CL = CL[ 1 ]
OP = OP[ 1 ]
LL = LL[ 1 ]
HH = HH[ 1 ]
endif
endif
endif
if trend> 0 then
r= 0
g= 200
b= 0
else
r= 200
g= 0
b= 0
endif
if trend<> trend[ 1 ] then
BACKGROUNDCOLOR (200 ,200 ,200 )
endif
RETURN CL coloured (r,g,b), xu3 coloured (r,g,b), trend<> trend[ 1 ] as "alert"
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