Can you help me please

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Hello

I took an indicator for mt4 and i will like to put an alert sound on it; i try many time to fix it , but no result.

If any body can help me ? (sorry for my english is bad) i trade well with this one but i don't want to stays all the days for waiting the signal.

I just want the signal sound when the color change (red to green)

Thank a lot to help me!

I put de code below:

//+------------------------------------------------------------------+

//|

//|

//|

//+------------------------------------------------------------------+

#property indicator_separate_window

#property indicator_buffers 2

#property indicator_color1 Green

#property indicator_color2 Red

//---- input parameters

extern int BoxSize=15;

//---- buffers

double ExtMapBuffer1[];

double ExtMapBuffer2[];

int Cur=0;

int KirUp=0;

int KirDn=0;

int kr=0;

int no=0;

double valueh=0;

double valuel=0;

//+------------------------------------------------------------------+

//| Custom indicator initialization function |

//+------------------------------------------------------------------+

int init()

{

//---- indicators

SetIndexStyle(0,DRAW_HISTOGRAM);

SetIndexBuffer(0,ExtMapBuffer1);

SetIndexLabel(0,"XOUP");

SetIndexStyle(1,DRAW_HISTOGRAM);

SetIndexBuffer(1,ExtMapBuffer2);

SetIndexLabel(1,"XODOWN");

IndicatorShortName("I-XO-A-H");

//----

return(0);

}

//+------------------------------------------------------------------+

//| Custor indicator deinitialization function |

//+------------------------------------------------------------------+

int deinit()

{

//---- TODO: add your code here

//----

return(0);

}

//+------------------------------------------------------------------+

//| Custom indicator iteration function |

//+------------------------------------------------------------------+

int start()

{

int CurrentBar;

double Hi,Lo,Curb;

int counted_bars=IndicatorCounted();

//---- TODO: add your code here

//----Calculation---------------------------

for(int i=0;i<=Bars;i++)

{

CurrentBar = Bars-i;

if (Cur<1)

{

Hi=Close[CurrentBar];

Lo=Close[CurrentBar];

Cur=1;

}

Curb=Close[CurrentBar];

if (Curb>(Hi+BoxSize*Point))

{

Cur+=1;

Hi=Curb;

Lo=Curb-BoxSize*Point;

KirUp=1;

KirDn=0;

kr+=1;

no=0;

}

if (Curb<(Lo-BoxSize*Point))

{

Cur+=1;

Lo=Curb;

Hi=Curb+BoxSize*Point;

KirUp=0;

KirDn=1;

no+=1;

kr=0;

}

valueh=kr;

valuel=0-no;

ExtMapBuffer1[CurrentBar]=valueh;

ExtMapBuffer2[CurrentBar]=valuel;

}

//----

return(0);

}

//+------------------------------------------------------------------+

Thank againt

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