Hi all

Not sure if solution already exists on this site but I've managed to implement use of the MSFL.dll using C# 2005. Basically I've converted the c++ msfl.h file into a C# compatible form and have used Platform Invoke to call methods on the msfl.dll.

I can make the msfl.cs source code freely available to anyone who wants it.

Regards

Craig

Craig,

I, for one, would like a copy of the code, and maybe a sample function?

Are there any benefits to compiling a C# app over a non-.NET app?  I never got onboard with the whole .NET thing and didn't like the direction Microsoft was going with its program environments, but if there are benefits to be had, then I had better take another look?



wabbit

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MS: 6.52 EOD, 7.x EOD, 8.0 PRO, 9.2 PRO w/QC, 10 PRO w/QC & MDK
For custom MetaStock programming : http://www.wabbit.com.au
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My SkyPE account : wabbit.com.au

Hi Scott

I'll upload the code to my website when I get home tonight. I have a sample function which uses the MSFL1_GetDataRec() function to retrive all price data for a particular security.

Unfortunately the MSFL2_GetMultipleDataRecs() function doesn't work. So I have to make multiple calls to MSFL1_GetDataRec(), but the performance isn't noticably different. 

I'm not sure why MSFL2_GetMultipleDataRecs() doesn't work. I pass the function an array of price record structs but it doesn't populate them.

Brandan - Not sure if you have come across this problem in your dealings with .NET?

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As for benefits to compling a C# app instead of C++6, where do I start!

Its main benefits are that it is very simple to write in (comparable with Visual Basic) and the code runs almost as fast as C++ (approx 1.1 seconds for every 1 second in C++).

For me, writing a function of medium complexity in C++ would take 4 times longer than in C# purely as C# environment is so much easier to use and bug handling/fixing is a dream compared to C++. I now spend more time thinking about trading logic rather than technical programming issues.

I was sceptical of .NET before, it looked like there were lots of incompatibility issues with unmanaged code. However I've found that not to be the case.

C# / .NET has a namespace called InteropServices which allows you to call C# dlls from C++  code.

I use a C++ MSX dll wrapper so that my C# dll can interface with Metastock.

Regards

Craig

Administrator has moderated this post.

It is in violation of the Equis Software license agreement to distribute the MDK source code in this manner.

I have write this code, and it return -170 from MSFL1_AddSecurity function, means MSFL_ERR_INVALID_FIELD_ORDER , can anyone help me fix this. Thanks in advance.

private void CreateCK()
        {
            string folder = txtDesPath.Text;
            int iErr;
            byte nDirNum=0;
            iErr = MSFL.MSFL1_OpenDirectory(folder,ref nDirNum,MSFL.MSFL_DIR_FORCE_USER_IN);
            if(iErr == 1)
            {
                iErr = MSFL.MSFL1_BuildMetaStockDirectory(nDirNum);
            }
            int iDate;
            iDate = DateTime.Now.Year * 10000 + DateTime.Now.Month * 100 + DateTime.Now.Day;
            // create CK
            MSFLSecurityInfo_struct objSec = new MSFLSecurityInfo_struct();
            //MSFLSecurityInfo_struct8 objSec = new MSFLSecurityInfo_struct8();
            objSec.dwTotalSize = MSFL.MSFL_SEC_INFO_SIZE;
            objSec.szName = "VCD";//item[0].ToString();
            objSec.szSymbol = "VCD";//item[0].ToString();
            objSec.bCompositel = MSFL.MSFL_FALSE; // not a composite
            objSec.cPeriodicity = 73; // daily
            objSec.wInterval = 0; //not know
            objSec.ucDisplayUnits = 0; // not know
            //Set the available data
            objSec.wDataAvailable = MSFL.MSFL_DATA_DATE + MSFL.MSFL_DATA_CLOSE + MSFL.MSFL_DATA_VOLUME + MSFL.MSFL_DATA_TIME;
            //objSec.wDataAvailable = MSFL.MSFL_DATA_DATE + MSFL.MSFL_DATA_CLOSE + MSFL.MSFL_DATA_HIGH + MSFL.MSFL_DATA_LOW + MSFL.MSFL_DATA_OPEN + MSFL.MSFL_DATA_VOLUME;
            /*objSec.wDataAvailable = MSFL.MSFL_DATA_DATE + MSFL.MSFL_DATA_CLOSE +
                    MSFL.MSFL_DATA_VOLUME + MSFL.MSFL_DATA_HIGH + MSFL.MSFL_DATA_LOW +
                    MSFL.MSFL_DATA_OPEN;*/
            objSec.lFirstDate = iDate;
            objSec.lLastDate = iDate;

            iErr = MSFL.MSFL1_AddSecurity(nDirNum,ref objSec,0);

            if(iErr == 0)
            {
                MessageBox.Show("OK");
            }
        }