# OBJ_ARROW Arrow object. ![Note](pics/objarrow.png) Note Anchor point position relative to the object can be selected from [ENUM_ARROW_ANCHOR](/en/docs/constants/objectconstants/enum_anchorpoint#enum_arrow_anchor). Large arrows (more than 5) can only be created by setting the appropriate [OBJPROP_WIDTH](/en/docs/constants/objectconstants/enum_object_property#enum_object_property_integer) property value when writing a code in MetaEditor. The necessary arrow type can be selected by setting one of the [Wingdings](/en/docs/constants/objectconstants/wingdings) font's symbol codes. Example The following script creates Arrow object on the chart and changes its type. Special functions have been developed to create and change graphical object's properties. You can use these functions "as is" in your own applications. ``` //--- description #property description "Script creates a random arrow in the chart window." #property description "Anchor point coordinate is set in" #property description "percentage of the chart window size." //--- display window of the input parameters during the script's launch #property script_show_inputs //--- input parameters of the script input string            InpName="Arrow";        // Arrow name input int               InpDate=50;             // Anchor point date in % input int               InpPrice=50;            // Anchor point price in % input ENUM_ARROW_ANCHOR InpAnchor=ANCHOR_TOP;   // Anchor type input color             InpColor=clrDodgerBlue; // Arrow color input ENUM_LINE_STYLE   InpStyle=STYLE_SOLID;   // Border line style input int               InpWidth=10;            // Arrow size input bool              InpBack=false;          // Background arrow input bool              InpSelection=false;     // Highlight to move input bool              InpHidden=true;         // Hidden in the object list input long              InpZOrder=0;            // Priority for mouse click //+------------------------------------------------------------------+ //| Create the arrow                                                 | //+------------------------------------------------------------------+ bool ArrowCreate(const long              chart_ID=0,           // chart's ID                  const string            name="Arrow",         // arrow name                  const int               sub_window=0,         // subwindow index                  datetime                time=0,               // anchor point time                  double                  price=0,              // anchor point price                  const uchar             arrow_code=252,       // arrow code                  const ENUM_ARROW_ANCHOR anchor=ANCHOR_BOTTOM, // anchor point position                  const color             clr=clrRed,           // arrow color                  const ENUM_LINE_STYLE   style=STYLE_SOLID,    // border line style                  const int               width=3,              // arrow size                  const bool              back=false,           // in the background                  const bool              selection=true,       // highlight to move                  const bool              hidden=true,          // hidden in the object list                  const long              z_order=0)            // priority for mouse click   { //--- set anchor point coordinates if they are not set    ChangeArrowEmptyPoint(time,price); //--- reset the error value    ResetLastError(); //--- create an arrow    if(!ObjectCreate(chart_ID,name,OBJ_ARROW,sub_window,time,price))      {       Print(__FUNCTION__,             ": failed to create an arrow! Error code = ",GetLastError());       return(false);      } //--- set the arrow code    ObjectSetInteger(chart_ID,name,OBJPROP_ARROWCODE,arrow_code); //--- set anchor type    ObjectSetInteger(chart_ID,name,OBJPROP_ANCHOR,anchor); //--- set the arrow color    ObjectSetInteger(chart_ID,name,OBJPROP_COLOR,clr); //--- set the border line style    ObjectSetInteger(chart_ID,name,OBJPROP_STYLE,style); //--- set the arrow's size    ObjectSetInteger(chart_ID,name,OBJPROP_WIDTH,width); //--- display in the foreground (false) or background (true)    ObjectSetInteger(chart_ID,name,OBJPROP_BACK,back); //--- enable (true) or disable (false) the mode of moving the arrow by mouse //--- when creating a graphical object using ObjectCreate function, the object cannot be //--- highlighted and moved by default. Inside this method, selection parameter //--- is true by default making it possible to highlight and move the object    ObjectSetInteger(chart_ID,name,OBJPROP_SELECTABLE,selection);    ObjectSetInteger(chart_ID,name,OBJPROP_SELECTED,selection); //--- hide (true) or display (false) graphical object name in the object list    ObjectSetInteger(chart_ID,name,OBJPROP_HIDDEN,hidden); //--- set the priority for receiving the event of a mouse click in the chart    ObjectSetInteger(chart_ID,name,OBJPROP_ZORDER,z_order); //--- successful execution    return(true);   } //+------------------------------------------------------------------+ //| Move the anchor point                                            | //+------------------------------------------------------------------+ bool ArrowMove(const long   chart_ID=0,   // chart's ID                const string name="Arrow", // object name                datetime     time=0,       // anchor point time coordinate                double       price=0)      // anchor point price coordinate   { //--- if point position is not set, move it to the current bar having Bid price    if(!time)       time=TimeCurrent();    if(!price)       price=SymbolInfoDouble(Symbol(),SYMBOL_BID); //--- reset the error value    ResetLastError(); //--- move the anchor point    if(!ObjectMove(chart_ID,name,0,time,price))      {       Print(__FUNCTION__,             ": failed to move the anchor point! Error code = ",GetLastError());       return(false);      } //--- successful execution    return(true);   } //+------------------------------------------------------------------+ //| Change the arrow code                                            | //+------------------------------------------------------------------+ bool ArrowCodeChange(const long   chart_ID=0,   // chart's ID                      const string name="Arrow", // object name                      const uchar  code=252)     // arrow code   { //--- reset the error value    ResetLastError(); //--- change the arrow code    if(!ObjectSetInteger(chart_ID,name,OBJPROP_ARROWCODE,code))      {       Print(__FUNCTION__,             ": failed to change the arrow code! Error code = ",GetLastError());       return(false);      } //--- successful execution    return(true);   } //+------------------------------------------------------------------+ //| Change anchor type                                               | //+------------------------------------------------------------------+ bool ArrowAnchorChange(const long              chart_ID=0,        // chart's ID                        const string            name="Arrow",      // object name                        const ENUM_ARROW_ANCHOR anchor=ANCHOR_TOP) // anchor type   { //--- reset the error value    ResetLastError(); //--- change anchor type    if(!ObjectSetInteger(chart_ID,name,OBJPROP_ANCHOR,anchor))      {       Print(__FUNCTION__,             ": failed to change anchor type! Error code = ",GetLastError());       return(false);      } //--- successful execution    return(true);   } //+------------------------------------------------------------------+ //| Delete an arrow                                                  | //+------------------------------------------------------------------+ bool ArrowDelete(const long   chart_ID=0,   // chart's ID                  const string name="Arrow") // arrow name   { //--- reset the error value    ResetLastError(); //--- delete an arrow    if(!ObjectDelete(chart_ID,name))      {       Print(__FUNCTION__,             ": failed to delete an arrow! Error code = ",GetLastError());       return(false);      } //--- successful execution    return(true);   } //+------------------------------------------------------------------+ //| Check anchor point values and set default values                 | //| for empty ones                                                   | //+------------------------------------------------------------------+ void ChangeArrowEmptyPoint(datetime &time,double &price)   { //--- if the point's time is not set, it will be on the current bar    if(!time)       time=TimeCurrent(); //--- if the point's price is not set, it will have Bid value    if(!price)       price=SymbolInfoDouble(Symbol(),SYMBOL_BID);   } //+------------------------------------------------------------------+ //| Script program start function                                    | //+------------------------------------------------------------------+ void OnStart()   { //--- check correctness of the input parameters    if(InpDate<0 || InpDate>100 || InpPrice<0 || InpPrice>100)      {       Print("Error! Incorrect values of input parameters!");       return;      } //--- number of visible bars in the chart window    int bars=(int)ChartGetInteger(0,CHART_VISIBLE_BARS); //--- price array size    int accuracy=1000; //--- arrays for storing the date and price values to be used //--- for setting and changing sign anchor point coordinates    datetime date[];    double   price[]; //--- memory allocation    ArrayResize(date,bars);    ArrayResize(price,accuracy); //--- fill the array of dates    ResetLastError();    if(CopyTime(Symbol(),Period(),0,bars,date)==-1)      {       Print("Failed to copy time values! Error code = ",GetLastError());       return;      } //--- fill the array of prices //--- find the highest and lowest values of the chart    double max_price=ChartGetDouble(0,CHART_PRICE_MAX);    double min_price=ChartGetDouble(0,CHART_PRICE_MIN); //--- define a change step of a price and fill the array    double step=(max_price-min_price)/accuracy;    for(int i=0;i