williamwong / Profile

I would like to hide all indicators data on the chart after the date of a vertical line drawn (named "RANGE_END").  For example in the following diagrams, left chart is before the vertical line is drawn, right chart is when the vertical line is

I have written a custom symbol to calculate USD index based on all the crosses against USD using the synthetic instrument formula. If I start my PC after a period of time, I find a gap in the index.  The custom symbol does not seem to

I need to draw multiple arrows on a single date.  It works for one time frame but when I resize the window or change to another time frame, the arrows overlapped.  Here is the sample code: // h is the high of the bar at object_date // first

My indicator tracks a date set by a vertical line every second (set by timer).  A long calculation is called if the vertical line is changed.  But when I click on the vertical line, while dragging to another price-bar and before releasing

The following gives CBuffer struct undefined compilation error, please help: class C1dArray; class C1dBuffer; class CBuffer; class C1dIntArray; class C1dArray {    C1dBuffer   *m_1dBuffer; }; class C1dIntArray: public C1dArray {

After executing a program, it reported a  few undeleted objects of certain type. How to find out where are these undeleted objects? Is there a way to access the calling function stack?  I am thinking a solution to store the calling stack at

I am trying to use template to define an array: template < typename T> class C 1 dArray { T m_array[]; public : // some non computational methods int size() { return ArraySize(m_array); } // some computational methods T average() { T s= 0 ; for

I understand that template <typename T> can be used to define a container class of type T at compile time.  For example: template <typename T> class C1dArray { T m_array[]; public: // and methods that deal with 1darray operations };

I am trying to build a 1d array that can take in 2d array as index and return another 2d array with the contend of 1d array: C1dArray < int > labels = {10,11}; C2dArray < int > index = {{0,1,1,0},{1,0,0,1}}; labels[index] will return

Very often we need to code our indicator to display a historical point in time to check if the data calculated and the signal generated during backtest are the same and also we need a way to paper trade visually to validate our strategy before embark

how to reconfig MT5 default user directory from  C:\Users\xxxx\AppData\Roaming\MetaQuotes\Terminal\6F9C869F6858C85D7809F35BE65FFDE3\MQL5 to a directory of my choice

We all know that MQL5 does not guarantee the availability of time series data hence our indicator/experts because more complicated with extra codes to cater for cases that the data may be available now but may not be in the next tick.  This is

I am trying to adjust the edit control width to fit the text it contains.  How do I calculate the width (in pixel) for a string of a given font size

void OnStart()   {    datetime t[];    datetime d=D'2011.5.2 20';    uint time=0;    int i;    for(i=0;i<5;i++)      {       uint

I was trying to report this in service request but it failed to save: Client Terminal Build and Version (32 or 64 bit) Build 470 Problem description No compilation error but I when I tried to load my expert: expert xxx (EURUSD H1) loaded

Is it possible to add local time for the calendar event? We can rename the current "Time" column to " Server Time ", then add a column "Local Time". And also is it possible to add a right menu item to go to the next event directly instead of

I would like to write an indicator to hide price bars after an input date. The purpose of this indicator is for educational, when I look into history, I would like to hide those bars on the right of a historical date I set so that I can analyse the

Understand the version upgrade is automatic, can we have a menu item to invoke it to start the upgrade?  i ran my system and waited for 2hours, it still didnt start the update.  In this case, can i download the new version and install over

void OnStart ()   {    datetime start= D'2010.12.6' ;    datetime end= D'2010.12.6 7' ;    datetime time[];    int copied=- 1 ,loop= 0 ;    while (copied==- 1 && loop< 100 )

If I declare a multi-dimensional arrays of objects and resize it, the constructor of the objects are not called properly, please check the attached example.  I have to overcome it by using an object pointer and create the object using new