Is this correct declaration?

Sherif Hasan 2015.02.03 10:10

extern double MaPeriod = 14;
extern double MaShift = 0;
//extern string MAMethodHelp="SMA=MODE_SMA;EMA=MODE_EMA;SMMA=MODE_SMMA;LWMA=MODE_LWMA";
extern double MaMethod = MODE_SMA;
//extern string MAAppliedHelp="PRICE_CLOSE;PRICE_OPEN;PRICE_HIGH;PRICE_LOW;PRICE_MEDIAN,PRICE_TYPICAL;PRICE_WEIGHTED";
extern double MaApplied = PRICE_CLOSE;

No Error while compiling. but in settings it took Value as "0.0" instead of "MODE_SMA"

what will be the issue?

Syed Naufal Gaddafi 2015.02.03 10:23 #1

Try SMA?

honest_knave 2015.02.03 10:25 #2

MODE_SMA has a value of 0.

By the way, you will get on better declaring these as integers not doubles.

Keith Watford 2015.02.03 10:37 #3

Try

extern ENUM_MA_METHOD MaMethod=MODE_SMA;

Sherif Hasan 2015.02.03 10:48 #4

GumRai:

Try

Yes. Thanks

William Roeder 2015.02.03 13:53 #5

honest_knave: By the way, you will get on better declaring these as integers not doubles.

Don't use doubles. Don't use integers.	extern double MaMethod = MODE_SMA; extern double MaApplied = PRICE_CLOSE;
Use the proper enumerations.	extern ENUM_MA_METHOD MaMethod = MODE_SMA; extern ENUM_APPLIED_PRICE MaApplied = PRICE_CLOSE;

honest_knave 2015.02.03 14:12 #6

I was equally referring to the erroneous declaration of MaPeriod and MaShift as doubles. Enumerations are effectively 4 byte integers

William Roeder 2015.02.03 16:03 #7

honest_knave: Enumerations are effectively 4 byte integers	Not in the GUI sheriffonline: Value as "0.0" instead of "MODE_SMA"

Sherif Hasan 2015.02.03 17:03 #8

WHRoeder:

Don't use doubles. Don't use integers.
Use the proper enumerations.

I am Newbie and learning MQL4. ofcourse i learnt lot, but still confused with Enumerations!

can you send me sample code for Enumearion?

Definetely i can get idea what mistake i have done?

I tested following example code! but says error message "Variable not Defined"?

enum months  // enumeration of named constants
   {
    January,
    February,
    March,
    April,
    May,
    June,
    July,
    August,
    September,
    October,
    November,
    December
   };

Function definiton unexpected, Help Excel(xls) to MQL4 Order close working in

Carl Schreiber 2015.02.04 06:57 #9

January will have 0 but 1! , Feb.=1,... Dec=11

So you have to add 1!

William Roeder 2015.02.04 13:20 #10

sheriffonline: I tested following example code! but says error message "Variable not Defined"? enum months // enumeration of named constants { January, February, March, April, May, June, July, August, September, October, November, December };	That is the definition. same as int or double. Define a variable. months aMonth = February;
gooly: January will have 0 but 1! , Feb.=1,... Dec=11 So you have to add 1!	No you don't. Set the value you want. enum months // enumeration of named constants { January = 1, February, // Value will default to 2 March, ...

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