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Tony,
I mentioned before I am not a PB user, but I THINK this might help to
solve your problem?
DIM lDate (l_iStartIndex TO l_iMaxIndex) AS LONG
FOR i = l_iStartIndex TO l_iMaxIndex
@a_psResultRec.@xxxxxxxxxxxxxx@pfValue[i]=CSNG(@a_psDataRec.@xxxxxxxxxxxxx[i])
@a_psResultRec.@xxxxxxxxxxxxxx@pfValue[i]=CLNG(@a_psDataRec.@xxxxxx[i].lDate)
NEXT i
The @a_psResultRec.@xxxxxxxxxxxxxx@pfValue[i] can only have one value,
so I am assuming you are just testing the for the moment and will
select which value to populate the return array with later?
Also note the @a_psResultRec.@xxxxxxxxxxxxxx@pfValue[i] is a float
data-type so you might have to cast the values (I am not sure what
your CSNG and CLNG do, but I assume they are casting as single and
long? Does PB have a cast CFLT?)
--- In equismetastock@xxxxxxxxxxxxxxx, Tony M <t4tonym@xxx> wrote:
>
> Jimmy & others,
>
> Well, I'm still not quite there yet, but thanks for helping me to
move a bit further forwards.
> I understood what you meant (more or less), but not really what the
specifics of what "dealt with accordingly" entails.
> After some trial & error (mostly error) experimentation, I have
revised the code (revised version now posted below),
> so that it doesn't crash out now, nor return all zero's any more (as
it did yesterday), but the results are still not quite right.
> Basically I don't really understand what I need to do with regard to
defining the pointer and the lDate variable correctly.
> My apologies for the "boring beginner" questions, but please if, you
could take another look at my updated version and give me any more
clues as to what is still wrong, I would be most grateful.
>
> Best regards,
> Tony
>
> ====================
>
> ----- Original Message ----
> From: jimmydahands <bellamy_29m@xxx>
> To: equismetastock@xxxxxxxxxxxxxxx
> Sent: Wednesday, June 13, 2007 4:29:00 PM
> Subject: [EquisMetaStock Group] Re: Date data with MDK / MSX using
PowerBasic
>
>
>
>
>
>
>
>
>
>
>
>
>
> Tony,
>
>
>
> I don't use PowerBasic, but the way I see your code working is that
>
> you are trying to deal with the long date data as a MSXDataInfoRec
>
> structure inside the MSXDataRec; when the date is MSXDateTime
structure.
>
>
>
> The psDate is a pointer to an array of MSXDateTime structres so must
>
> be dealt with accordingly.
>
>
>
> --- In equismetastock@ yahoogroups. com, Tony M <t4tonym@ > wrote:
>
> >
>
> > Hi,
>
> >
>
> > Anyone writing their own Metastock External Functions (MSX) with the
>
> MDK who either:
>
> > a) writes in (Power) BASIC rather than C++, and/or
>
> > b) has enough experience with MSX DLL's to be able to help me ,
>
> > could you please advise me regarding getting the Date array as a
>
> function output from the MSX data structure.
>
> >
>
> > Below is an example of part of the code that I wrote to access
>
> "DOHLCV" data.
>
> > It works fine for the "OHLCV" part (the example shows "H"), but it
>
> doesn't work for the "D" part.
>
> > I assume that I am simply missing some required step, due to that
>
> fact that the "OHLCV" parts are floating point variables,
>
> > but "D" is data type "long". However the MDK manual does not make it
>
> clear exactly what the required syntax is.
>
> >
>
> > I think that the MSX part of the MDK is great, but the manual is not
>
> quite adequate.
>
> > Please help, anyone .....
>
> >
>
> >
>
> > Regards,
>
> > Tony M
>
> >
>
> > Metastock MSX example follows:
>
> >
>
> > ============ ========= ========= ========= ========= =========
========= =
>
> FUNCTION MyDate SDECL ALIAS "MyDate" _
> (BYVAL a_psDataRec AS MSXDataRec PTR, _
> BYVAL a_psDataInfoArgs AS MSXDataInfoRecArgsA rray PTR, _
> BYVAL a_psNumericArgs AS MSXNumericArgsArray PTR, _
> BYVAL a_psStringArgs AS MSXStringArgsArray PTR, _
> BYVAL a_psCustomArgs AS MSXCustomArgsArray PTR, _
> BYVAL a_psResultRec AS MSXResultRec PTR) _
> EXPORT AS LONG
>
> LOCAL l_bRtrn AS LONG
> l_bRtrn = %MSX_SUCCESS
>
> LOCAL l_psData AS MSXDataInfoRec PTR
> LOCAL l_iStartIndex AS LONG
> LOCAL l_iMaxIndex AS LONG
> DIM i AS INTEGER
> l_psData = @a_psDataInfoArgs. psDataInfoRecs( 0) 'Input data array
>
> l_iStartIndex = @l_psData.iFirstVal id
>
> l_iMaxIndex = @l_psData.iLastVali d
>
> @a_psResultRec. @... = @l_psData.iFirstVal id
>
> @a_psResultRec. @... = @l_psData.iLastVali d
> ' *** So far, down to here is all standard stuff for MSX functions
>
> ************ *****
>
>
> LOCAL l_psHigh AS MSXDataInfoRec PTR
> '*** For the "H" part of "DOHLC" data array ***
> l_psHigh = VARPTR(@a_psDataRec .sHigh)
>
>
> LOCAL lDate AS MSXDateTime PTR
> '*** For the "D" part of "DOHLC" data array ***
> lDate = VARPTR(@a_psDataRec .psDate)
> DIM lDate (l_iStartIndex TO l_iMaxIndex) AS LONG
>
>
> FOR i = l_iStartIndex TO l_iMaxIndex
>
> @a_psResultRec. @psResultArray. @pfValue[ i] =
>
> CSNG(@l_psHigh. @pfValue[ i]) '*** "H": THIS WORKS OK***
>
> @a_psResultRec. @psResultArray. @pfValue[ i] =
>
> CLNG(@lDate(i)) '*** "D": THIS DOESN'T ***
>
> NEXT i
>
>
>
> MyDate = l_bRtrn
>
> END FUNCTION
>
>
>
>
> >
>
> >
>
> >
>
> >
>
> >
>
> >
>
> ____________ _________ _________ _________ _________ _________ _
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