The instructions for making a DLL in SwiftForth are in Section 8.2.2 of the SwiftForth-Win32 reference manual. Here's
an example of a DLL that exports a function called AskQuestion:

: AskQuestion ( hwnd -- n )
   Z" Could this be any easier?" Z" Question" MB_YESNO MessageBox ;

1 EXPORT: AskQuestion

PROGRAM DEMO.DLL

Any program in any language can call this Forth word via its DLL interface. The function prototype would look something
like this (I'm not a C programmer, so correct as necessary):

 int AskQuestion(HWND hWnd);

Perhaps someone who knows how will show me how much simpler the above example is to code in C.

--Leon

> -----Original Message-----
> From: sftalk-bounce_at_forth.com [mailto:sftalk-bounce_at_forth.com] On Behalf Of Appert, Kevin
> Sent: Friday, January 29, 2010 7:57 AM
> To: 'sftalk_at_forth.com'
> Subject: [sftalk] Re: generating self-contained dlls: sf or swiftx?
>
> If you're writing for Windows boxes, SwiftForth is the environment you want. I suspect it might be easier to
> write a auto-DLL-maker in C, except for Leon or Rick, who might very well finished writing one while I wrote
> this.
>
> I believe if you're doing an embedded implementation, you'll probably have to write your own DLL-maker for
> SwiftX.
>
>
> -----Original Message-----
> From: sftalk-bounce_at_forth.com [mailto:sftalk-bounce_at_forth.com] On Behalf Of Joel Reymont
> Sent: Friday, January 29, 2010 5:37 AM
> To: sftalk_at_forth.com
> Subject: [sftalk] generating self-contained dlls: sf or swiftx?
>
> I want to have a GUI app where I can paste some code and get a DLL as a result.
>
> Should I use SwiftForth or SwiftX for this?
>
> The context is compiling trading strategies written in EasyLanguage
> [1] to machine code, to be loaded back into TradeStation [2] as a DLL.
> Think improvement in security, speed, etc. This type of a small
> self-contained Forth runtime can be loaded into all types of other
> trading applications that normally don't understand EasyLanguage.
>
> Thanks, Joel
>
> [1] http://lambda-the-ultimate.org/node/2201
> [2] http://www.tradestation.com
>
> --
> http://es.linkedin.com/in/joelreymont
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Received on Fri Jan 29 2010 - 09:10:11 PST