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Todd
Following on from the example below ... dll's are vey useful but do not let
them take control e.g. producing a message box, this will cause TS to hang.
Paul Williams (programmer)
www.futurenets.co.uk
----- Original Message -----
From: "Mark Smeets" <mark@xxxxxxxxxxx>
To: <todd@xxxxxxxxxxxx>; <omega-list@xxxxxxxxxx>
Sent: Monday, December 30, 2002 1:13 PM
Subject: RE: Question on .dll files and Tradestation
> Maybe I can help you. Here is some code for a simple moving average:
>
> Here is the movavg.cpp file:
>
> #include "movavg.h"
> #include <stdio.h>
> int __stdcall MyMovAvg(LPLONG lpClose, int n, float scale, LPFLOAT
> result)
>
> float x = 0.0;
> for (int i = 0; i < n; i++) {
> x += *FindAddress_Close(lpClose,i);
> }
> *result = x/static_cast<float>(n*scale);
> return 0;
> }
>
> BOOL APIENTRY DllMain( HANDLE hModule,
> DWORD ul_reason_for_call,
> LPVOID lpReserved )
> {
> switch( ul_reason_for_call )
> {
> case DLL_PROCESS_ATTACH:
> MessageBox(NULL,"Inside case DLL_PROCESS_ATTACH",
> "Made it this far",MB_OK);
> case DLL_THREAD_ATTACH:
> ;
> case DLL_THREAD_DETACH:
> ;
> case DLL_PROCESS_DETACH:
> ;
> }
> return TRUE;
> }
>
> Here is the movavg.h file:
>
> #include <windows.h>
> #include "elkit32.h"
>
> int __stdcall MyMovAvg(LPLONG lpClose,int n, float scale, LPFLOAT
> result);
>
> And you need a movavg.def file:
>
> EXPORTS
> MyMovAvg
>
> Please note that you will need to add the .def file to your project. By
> the way, I've only been succesful using visual C++; There are issues
> with a dll built with borland C++ builder and tradestation.
>
> I've had only moderate success using dlls with tradestation. I get all
> sorts of spurious floating point errors. Furthermore, the speedup was
> far less than I had expected.
>
> Good luck,
>
> Mark.
>
> > -----Original Message-----
> > From: Todd Hanson [mailto:todd@xxxxxxxxxxxx]
> > Sent: vrijdag 27 december 2002 23:11
> > To: omega-list@xxxxxxxxxx
> > Subject: Question on .dll files and Tradestation
> >
> >
> > Does anyone out there have any sample .dll files in C++ programmed for
> > tradestation that I can take a look at? Any help would be greatly
> > appreciated. Thank you.
> >
> > -----Original Message-----
> > From: omega-digest-request@xxxxxxxxxx
> > [mailto:omega-digest-request@xxxxxxxxxx]
> > Sent: Friday, December 27, 2002 1:52 PM
> > To: omega-digest@xxxxxxxxxx
> > Subject: omega-digest Digest V102 #420
> >
> >
> >
> >
>
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