Donchian Channel for beginners by William210

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//|                 Donchian Channel for beginners by William210.mq5 |

//|                                             Copyright 2023, GwDs |

//|                                    Need more help? Contact me on |

//|                         https://www.mql5.com/fr/users/william210 |

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#property copyright "Copyright 2023, GwDs"

#property version   "1.02" // 947



#property description "Donchian Channel beginner tutorial to learn"

#property description "If this code malfunctions for whatever reasons, forgetting or MQL5 upgrades\nlet me know so I can correct it, thank you\n"

#property description "May this code help you\n"

#property description "You can find all my indicator codes in CodeBase or the Marketplace, free or purchasable, by searching for William210"



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// --- Indicator preference

input group "Doncian Channel beginner tutorial to learn"

input uchar                g_DonPeriod    = 21;           // Period for Donchian Channel



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// --- Graph placement

#property indicator_chart_window



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// ---  Buffer declaration

#property   indicator_buffers    3    // Number of buffer displayed   

#property   indicator_plots      3    // number of plot on the graph



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// --- Arrays for buffers and index

double g_BuffDonchianMD[];            // Middle band

double g_BuffDonchianUP[];            // Upper band

double g_BuffDonchianDW[];            // lower band



// --- indexesfor buffers

#define g_IndexDonchianMD 0

#define g_IndexDonchianUP 1

#define g_IndexDonchianDW 2



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//--- Buffer plot characteristics

#property indicator_label1  "Donchian Middle"   // Label

#property indicator_type1   DRAW_LINE                   // Plot type   

#property indicator_color1  clrGray                     // Color  

#property indicator_style1  STYLE_DOT                   // Plot style

#property indicator_width3  1                           // Plot width



#property indicator_label2  "Donchian upper"

#property indicator_type2   DRAW_LINE

#property indicator_color2  clrGreen

#property indicator_style2  STYLE_SOLID

#property indicator_width2  1



#property indicator_label3  "Donchian Lower"

#property indicator_type3   DRAW_LINE

#property indicator_color3  clrRed

#property indicator_style3  STYLE_SOLID

#property indicator_width3  1



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//|   OnInit                                                         |

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int OnInit()



{



Comment( "My apologies, this code is no longer available and I don't know how to remove/hide it from codebase");



  return(INIT_SUCCEEDED);

}



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//|   OnCalculate                                                    |

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int OnCalculate( const int        rates_total,      // Total number of bars to be processed

                 const int        prev_calculated,  // Number of bars calculated in the previous call

                 const datetime   &time[],          // Array of bar times

                 const double     &open[],          // Array of bar open prices

                 const double     &high[],          // Array of bar high prices

                 const double     &low[],           // Array of bar low prices

                 const double     &close[],         // Array of bar close prices

                 const long       &tick_volume[],   // Array of tick volumes for each bar

                 const long       &volume[],        // Array of real volumes for each bar

                 const int        &spread[])        // // Array of spreads for each bar



{

  return( rates_total);

}



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//|   OnDeinit                                                       |

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void OnDeinit(const int reason)



{

  Comment( "");

}



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//| The End, That s All Folks!                                       |

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