GeneralTradingSarl
173 lines
16 KiB
Plaintext
173 lines
16 KiB
Plaintext
//+------------------------------------------------------------------+
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//| Lot Check.mq5 |
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//| Copyright © 2018, Vladimir Karputov |
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//| http://wmua.ru/slesar/ |
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//+------------------------------------------------------------------+
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#property copyright "Copyright © 2018, Vladimir Karputov"
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#property link "http://wmua.ru/slesar/"
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#property version "1.000"
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#property script_show_inputs
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//---
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#include <Trade\SymbolInfo.mqh>
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CSymbolInfo m_symbol; // symbol info object
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//--- input parameters
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input string InpSymbol= ""; // Symbol ("", " ", "*/23458vg49" ... -> the current Symbol will be used)
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input double InpLot = 0.758; // Lot
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//+------------------------------------------------------------------+
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//| Script program start function |
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//+------------------------------------------------------------------+
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void OnStart()
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{
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if(!m_symbol.Name(InpSymbol)) // sets symbol name
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if(!m_symbol.Name(Symbol())) // sets symbol name
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return;
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RefreshRates();
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if(!LabelCreate(0,"Lot Check_"+"lots_min",0,5,15,CORNER_RIGHT_LOWER,"Lots min") ||
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!LabelCreate(0,"Lot Check_"+"lots_step",0,5,30,CORNER_RIGHT_LOWER,"Lots step") ||
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!LabelCreate(0,"Lot Check_"+"lots_max",0,5,45,CORNER_RIGHT_LOWER,"Lots max") ||
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!LabelCreate(0,"Lot Check_"+"lots",0,5,60,CORNER_RIGHT_LOWER,"Lots"))
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return;
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//---
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double lots=InpLot,lots_step,lots_max=0.0,lots_min=0.0;
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lots=LotCheck(lots,lots_step,lots_max,lots_min);
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LabelTextChange(0,"Lot Check_"+"lots_min","Lots min: "+DoubleToString(lots_min,2));
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LabelTextChange(0,"Lot Check_"+"lots_step","Lots step: "+DoubleToString(lots_step,2));
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LabelTextChange(0,"Lot Check_"+"lots_max","Lots max: "+DoubleToString(lots_max,2));
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LabelTextChange(0,"Lot Check_"+"lots","Lots input: "+DoubleToString(InpLot,3)+", output: "+DoubleToString(lots,2));
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//---
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return;
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}
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//+------------------------------------------------------------------+
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//| Refreshes the symbol quotes data |
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//+------------------------------------------------------------------+
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bool RefreshRates(void)
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{
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//--- refresh rates
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if(!m_symbol.RefreshRates())
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{
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Print("RefreshRates error");
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return(false);
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}
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//--- protection against the return value of "zero"
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if(m_symbol.Ask()==0 || m_symbol.Bid()==0)
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return(false);
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//---
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return(true);
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}
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//+------------------------------------------------------------------+
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//| Lot Check |
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//+------------------------------------------------------------------+
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double LotCheck(double lots,double &lots_step,double &lots_max,double &lots_min)
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{
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//--- calculate maximum volume
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double volume=NormalizeDouble(lots,2);
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lots_step=m_symbol.LotsStep();
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if(lots_step>0.0)
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volume=lots_step*MathFloor(volume/lots_step);
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//---
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lots_min=m_symbol.LotsMin();
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if(volume<lots_min)
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volume=0.0;
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//---
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lots_max=m_symbol.LotsMax();
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if(volume>lots_max)
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volume=lots_max;
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return(volume);
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}
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//+------------------------------------------------------------------+
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//| Create a text label |
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//+------------------------------------------------------------------+
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bool LabelCreate(const long chart_ID=0, // chart's ID
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const string name="Label", // label name
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const int sub_window=0, // subwindow index
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const int x=0, // X coordinate
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const int y=0, // Y coordinate
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const ENUM_BASE_CORNER corner=CORNER_RIGHT_LOWER,// chart corner for anchoring
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const string text="Label", // text
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const string font="Courier New", // font
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const int font_size=10, // font size
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const color clr=clrRed, // color
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const double angle=0.0, // text slope
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const ENUM_ANCHOR_POINT anchor=ANCHOR_RIGHT_LOWER,// anchor type
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const bool back=false, // in the background
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const bool selection=false, // highlight to move
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const bool hidden=true, // hidden in the object list
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const long z_order=0) // priority for mouse click
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{
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//--- reset the error value
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ResetLastError();
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//--- create a text label
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if(!ObjectCreate(chart_ID,name,OBJ_LABEL,sub_window,0,0))
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{
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Print(__FUNCTION__,
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": failed to create text label! Error code = ",GetLastError());
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return(false);
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}
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//--- set label coordinates
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ObjectSetInteger(chart_ID,name,OBJPROP_XDISTANCE,x);
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ObjectSetInteger(chart_ID,name,OBJPROP_YDISTANCE,y);
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//--- set the chart's corner, relative to which point coordinates are defined
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ObjectSetInteger(chart_ID,name,OBJPROP_CORNER,corner);
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//--- set the text
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ObjectSetString(chart_ID,name,OBJPROP_TEXT,text);
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//--- set text font
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ObjectSetString(chart_ID,name,OBJPROP_FONT,font);
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//--- set font size
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ObjectSetInteger(chart_ID,name,OBJPROP_FONTSIZE,font_size);
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//--- set the slope angle of the text
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ObjectSetDouble(chart_ID,name,OBJPROP_ANGLE,angle);
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//--- set anchor type
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ObjectSetInteger(chart_ID,name,OBJPROP_ANCHOR,anchor);
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//--- set color
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ObjectSetInteger(chart_ID,name,OBJPROP_COLOR,clr);
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//--- display in the foreground (false) or background (true)
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ObjectSetInteger(chart_ID,name,OBJPROP_BACK,back);
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//--- enable (true) or disable (false) the mode of moving the label by mouse
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ObjectSetInteger(chart_ID,name,OBJPROP_SELECTABLE,selection);
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ObjectSetInteger(chart_ID,name,OBJPROP_SELECTED,selection);
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//--- hide (true) or display (false) graphical object name in the object list
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ObjectSetInteger(chart_ID,name,OBJPROP_HIDDEN,hidden);
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//--- set the priority for receiving the event of a mouse click in the chart
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ObjectSetInteger(chart_ID,name,OBJPROP_ZORDER,z_order);
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//--- successful execution
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return(true);
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}
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//+------------------------------------------------------------------+
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//| Change the label text |
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//+------------------------------------------------------------------+
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bool LabelTextChange(const long chart_ID=0, // chart's ID
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const string name="Label", // object name
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const string text="Text") // text
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{
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//--- reset the error value
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ResetLastError();
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//--- change object text
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if(!ObjectSetString(chart_ID,name,OBJPROP_TEXT,text))
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{
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Print(__FUNCTION__,
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": failed to change the text! Error code = ",GetLastError());
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return(false);
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}
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//--- successful execution
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return(true);
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}
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//+------------------------------------------------------------------+
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//| Delete a text label |
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//+------------------------------------------------------------------+
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bool LabelDelete(const long chart_ID=0, // chart's ID
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const string name="Label") // label name
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{
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//--- reset the error value
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ResetLastError();
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//--- delete the label
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if(!ObjectDelete(chart_ID,name))
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{
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Print(__FUNCTION__,
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": failed to delete a text label! Error code = ",GetLastError());
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return(false);
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}
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//--- successful execution
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return(true);
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}
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//+------------------------------------------------------------------+
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