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Values in an MSX-DLL are certainly not fixed - they can be specified by
arguments just like the built-in functions. Think of an external (MSX)
function as being like the built-in moving average function. It doesn't
plot anything by itself, nor does it have it's own user dialog for obtaining
values. Mov is called by a custom indicator or expert that provides the
run-time values (or, in the case of a custom indicator, includes the "Input"
statement), and then passes those values into the actual call to mov.
MSX-DLLs are called the same way - by a custom indicator, expert, or other
MetaStock tools that supply the actual arguments to the DLL functions.
Cheryl Elton
Equis International, Inc.
-----Original Message-----
From: Adam Hefner [mailto:vonhef@xxxxxxxxxxxx]
Sent: Thursday, November 04, 1999 6:42 AM
To: metastock@xxxxxxxxxxxxx
Subject: Re: Increasing the MetaStock(R) Formula Language with MetaStock
7
Cheryl Elton,
You wrote:
" Things that you cannot do with an MSX DLL include:
* GUI functions including plotting and user dialogs."
This raises a question........do you mean by this that the DLL needs
a "Fixed" value and cannot prompt the user for values? In other
words if I coded a moving average DLL, it would need to be a
fixed period (such as 20 day moving average) and could not
prompt user for the look-back period?
If the above answer to the question is "yes" (meaning DLL values MUST
be fixed) then, how could system testing be performed on the DLL code
to find the best parameters?
Adam Hefner
----- Original Message -----
From: Equis Support <support@xxxxxxxxx>
To: <metastock@xxxxxxxxxxxxx>
Sent: Tuesday, November 02, 1999 5:13 PM
Subject: Increasing the MetaStock(R) Formula Language with MetaStock 7
>
> Things that you cannot do with an MSX DLL include:
> * GUI functions including plotting and user dialogs.
> * Access the standard MetaStock built-in functions from within your
> DLL.
> Cheryl Elton
> Product Development
> Equis International, Inc
> http://www.equis.com
>
>
>
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