Jianyuan Huang:
For example,I want to keep right part of ellispe which in the rectangle,hide the left part.
If i use canvas to draw this,when i move the chart, the ellipse dont move. i want to the object i darw move with the chart.
so I hope draw this use price and time ,not the x and y coordinate.
thank you
![](https://c.mql5.com/3/306/333.gif)
#property indicator_chart_window #include <Canvas\iCanvas.mqh> //https://www.mql5.com/ru/code/22164 bool click = false; datetime _time=0; double _price=0; //+------------------------------------------------------------------+ int OnInit() { delete Canvas; Canvas= new iCanvas(0,300,300,"iCanvas",50,150); Canvas.Erase(); Canvas.Circle(-50,75,90,0xFF00FFFF); Canvas.Update(); return(INIT_SUCCEEDED); } //+------------------------------------------------------------------+ int OnCalculate (const int rates_total, const int prev_calculated,const int begin,const double& price[]) { return(rates_total); } //+------------------------------------------------------------------+ void OnChartEvent(const int id, const long &lparam, const double &dparam, const string &sparam) { if (sparam=="1" && !click) {click=true; _time=Canvas.TimePos(_MouseX); _price=Canvas.Price(_MouseY);} if (!click ){if(id==CHARTEVENT_MOUSE_MOVE) {Canvas.MoveCanvas(_MouseX,_MouseY); Canvas.Update();}} else if (id==CHARTEVENT_CHART_CHANGE) {Canvas.MoveCanvas(int(_X(_time)),int(_Y(_price))); Canvas.Update();} } //+------------------------------------------------------------------+
Files:
WhatTheLack.mq5
2 kb
iCanvas.mqh
45 kb
Nikolai Semko:
thanks
Jianyuan Huang:
thanks
It will be more correct:
#property indicator_chart_window #define protected public #include <Canvas\Canvas.mqh> #undef protected bool click = false; int sub; double _p; datetime _t; CCanvas Canvas; int OnInit() { ChartXYToTimePrice(0,300,300,sub,_t,_p); Canvas.CreateBitmap(0,0,"Canvas",_t,_p,50,150,COLOR_FORMAT_ARGB_NORMALIZE); ChartSetInteger(0,CHART_EVENT_MOUSE_MOVE,true); Canvas.Erase(); Canvas.Circle(-50,75,90,0xFF00FFFF); Canvas.Update(); return(INIT_SUCCEEDED); } //+------------------------------------------------------------------+ int OnCalculate (const int rates_total, const int prev_calculated,const int begin,const double& price[]) { return(rates_total); } //+------------------------------------------------------------------+ void OnChartEvent(const int id, const long &lparam, const double &dparam, const string &sparam) { if (sparam=="1" && !click) {click=true; ChartXYToTimePrice(0,(int)lparam,(int)dparam,sub,_t,_p);} if (!click )if(id==CHARTEVENT_MOUSE_MOVE) {ChartXYToTimePrice(0,(int)lparam,(int)dparam,sub,_t,_p); MoveCanvas(); Canvas.Update();} } //+------------------------------------------------------------------+ bool MoveCanvas() { if(ObjectSetInteger(Canvas.m_chart_id,Canvas.m_objname,OBJPROP_TIME,_t) && ObjectSetDouble(Canvas.m_chart_id,Canvas.m_objname,OBJPROP_PRICE,_p)) return(true); else return(false); }
Nikolai Semko:
can we realize this by ObjectCreat only?It will be more correct:
Jianyuan Huang:
can we realize this by ObjectCreat only?
can we realize this by ObjectCreat only?
This code uses ObjectCreate in the CCanvas.mqh library
![](https://c.mql5.com/3/307/image__73.png)
![MQL5 - Language of trade strategies built-in the MetaTrader 5 client terminal](https://c.mql5.com/i/registerlandings/logo-2.png)
You are missing trading opportunities:
- Free trading apps
- Over 8,000 signals for copying
- Economic news for exploring financial markets
Registration
Log in
You agree to website policy and terms of use
If you do not have an account, please register
For example,I want to keep right part of ellispe which in the rectangle,hide the left part.
If i use canvas to draw this,when i move the chart, the ellipse dont move. i want to the object i darw move with the chart.
so I hope draw this use price and time ,not the x and y coordinate.
thank you