how this functions work? Or are these functions working on MT5!

[Ahmet Metin Yilmaz]

SYMBOL_SESSION_BUY_ORDERS

SYMBOL_SESSION_BUY_ORDERS_VOLUME

[Guo Zheng Feng]

Ahmet Metin Yilmaz:

SYMBOL_SESSION_BUY_ORDERS

SYMBOL_SESSION_BUY_ORDERS_VOLUME

seems these are  CONSTANCE not Function

datas as argument to(of) Function will usually changes Function behavior or output. but some data is not easy  for remember or easy to read so that we use a symbol to instead of data.

for eg.   #define   PI    3.141592658

PI are constant.

[Ahmet Metin Yilmaz]

https://www.mql5.com/en/docs/constant_indices

SYMBOL_SESSION_BUY_ORDERS	Number of Buy orders at the moment	SymbolInfoInteger
SYMBOL_SESSION_BUY_ORDERS_VOLUME	Current volume of Buy orders	SymbolInfoDouble

[Ahmet Metin Yilmaz]

Feng Guozheng:
seems these are  CONSTANCE not Function

datas as argument to(of) Function will usually changes Function behavior or output. but some data is not easy  for remember or easy to read so that we use a symbol to instead of data.

for eg.   #define   PI    3.141592658

PI are constant.

I mean they are standart constants in mql5

but always return zero as value

why?

[Guo Zheng Feng]

Ahmet Metin Yilmaz:

I mean they are standart constants in mql5

but always return zero as value

why?

i don't have mt5 installed.

but if you means Print(SYMBOL_SESSION_BUY_ORDERS); and get 0 that means they define  SYMBOL_SESSION_BUY_ORDERS stand for 0;

or you means invoke  SymbolInfoInteger(xxx,SYMBOL_SESSION_BUY_ORDERS) and get 0?

[Ahmet Metin Yilmaz]

:)

//---
   long  BUYorders=SymbolInfoInteger(_Symbol,SYMBOL_SESSION_BUY_ORDERS);
   if(BUYorders==0) BUYorders=1; //for div on zerro
   long  SELLorders=SymbolInfoInteger(_Symbol,SYMBOL_SESSION_SELL_ORDERS);
   if(SELLorders==0) SELLorders=1; //for div on zerro
   double BUYvolume=SymbolInfoDouble(_Symbol,SYMBOL_SESSION_BUY_ORDERS_VOLUME);
   if(BUYvolume==0) BUYvolume=1; //for div on zerro
   double SELLvolume=SymbolInfoDouble(_Symbol,SYMBOL_SESSION_SELL_ORDERS_VOLUME);
   if(SELLvolume==0) SELLvolume=1; //for div on zerro

[Guo Zheng Feng]

i though it may return the orders number in the session - every connection means a session.

i read the manual,didn't get more info . but its desciption make me think like above.

so i open some tickets:

but it return 0 still :(

i am sure the network is not disconnect. maybe this is nothing about it?

[Ahmet Metin Yilmaz]

yes

I was asked completly this too 

:)

[bti4]

Hi,

My apologies if this has been address before:

Print(SymbolInfoDouble("EURUSD",SYMBOL_POINT)); is returning le-05

Print(SymbolInfoDouble("GBPJPY",SYMBOL_POINT)); is returning 0.001 which is correct

I cant understand why EURUSD and GBPUSD etc all return le-05?

MT5 version 5 build 1940.

Any help would be greatly appreciated

[Guo Zheng Feng]

bti4:

Hi,

My apologies if this has been address before:

Print(SymbolInfoDouble("EURUSD",SYMBOL_POINT)); is returning le-05

Print(SymbolInfoDouble("GBPJPY",SYMBOL_POINT)); is returning 0.001 which is correct

I cant understand why EURUSD and GBPUSD etc all return le-05?

MT5 version 5 build 1940.

Any help would be greatly appreciated

let's see the codes(script,MT4) and its outputs as below:

void dspmsg(string sym){
   Print("Symbol:",sym," ","Ask:",MarketInfo(sym,MODE_ASK)," ","Digits:",MarketInfo(sym,MODE_DIGITS)," Point:",MarketInfo(sym,MODE_POINT));
}

void OnStart()
{
   
   dspmsg("GBPUSD");
   dspmsg("EURUSD");
   dspmsg("EURAUD");
   dspmsg("USDMXN");
   dspmsg("OILUSD");
   dspmsg("XAGUSD");
   dspmsg("XAUUSD");
   dspmsg("BTCUSD");
          
}

outputs:

2018.11.10 03:23:00.289    testscript USDJPY,Daily: Symbol:BTCUSD Ask:6342.9 Digits:3.0 Point:0.001
2018.11.10 03:23:00.289    testscript USDJPY,Daily: Symbol:XAUUSD Ask:1210.14 Digits:2.0 Point:0.01
2018.11.10 03:23:00.289    testscript USDJPY,Daily: Symbol:XAGUSD Ask:14.2 Digits:2.0 Point:0.01
2018.11.10 03:23:00.289    testscript USDJPY,Daily: Symbol:OILUSD Ask:60.39 Digits:2.0 Point:0.01
2018.11.10 03:23:00.289    testscript USDJPY,Daily: Symbol:USDMXN Ask:20.32875 Digits:5.0 Point:1e-05
2018.11.10 03:23:00.289    testscript USDJPY,Daily: Symbol:EURAUD Ask:1.56937 Digits:5.0 Point:1e-05
2018.11.10 03:23:00.289    testscript USDJPY,Daily: Symbol:EURUSD Ask:1.13378 Digits:5.0 Point:1e-05
2018.11.10 03:23:00.289    testscript USDJPY,Daily: Symbol:GBPUSD Ask:1.29793 Digits:5.0 Point:1e-05

now you may notic that you may be in a mistake.

the answer is not to find 'which is correct'

the answer is that,the point value for different is not share the same value.

for EURUSD,if the price is 1.13378 and if it has to be change it have to be 1.13377 or 1.13379, change for 0.00001(that is 1e-05) at lease. 

change to 1.133781? no!

that 's what the 'POINT' defined.

[Ahmet Metin Yilmaz]

bti4:

Hi,

My apologies if this has been address before:

Print(SymbolInfoDouble("EURUSD",SYMBOL_POINT)); is returning le-05

Print(SymbolInfoDouble("GBPJPY",SYMBOL_POINT)); is returning 0.001 which is correct

I cant understand why EURUSD and GBPUSD etc all return le-05?

MT5 version 5 build 1940.

Any help would be greatly appreciated

point = digit counts

GBPJPY has 3 digits after dot on the price but EURUSD has 5 digits after dots on the price

so both are correct