Good points! I replaced my DLL with a runtime package and the program
now works (I can place the BPL form on a TabSheet). Well, based on that
I would strongly advocate using packages instead of DLLs where the VCL
is involved.
BTW, did you mean DPK/BPL, or is a DPL something new (and exciting :)?
Cheers,
> -----Original Message-----
> From: Myles Penlington [SMTP:[EMAIL PROTECTED]]
> Sent: Thursday, September 02, 1999 1:47 PM
> To: Multiple recipients of list delphi
> Subject: RE: [DUG]: Forms from DLLs
>
> Is this one? of the reasons Borland invented the DPL/BPL libraries
> which is
> a superset of the DLL for Delphi use??
> And perhaps we should be using the DPL/BPL instead (and hence get
> around
> these kind of problems)?
> Myles.
>
>
> > -----Original Message-----
> > From: Carl Reynolds [SMTP:[EMAIL PROTECTED]]
> > Sent: Thursday, September 02, 1999 1:30 PM
> > To: Multiple recipients of list delphi
> > Subject: RE: [DUG]: Forms from DLLs
> >
> > Yeah, if I remove ShareMem from my uses clauses, funnily enough my
> test
> > program doesn't work anymore either - with the same problem as first
> > mentioned! Rohit, I'm presuming you don't need a copy of it
> anymore.
> >
> > My guess is if there are any TStringFields, which use long strings,
> in
> > your table data, that alone would be sufficient to require ShareMem
> in the
> > program.
> >
> > I ran into a curious problem while I was mucking around anyway. I
> have no
> > problem creating an instance of the DLL form, displaying it, and
> joining
> > it to the dataset on the calling program's main form. But when I
> try to
> > set the parent property of the DLL form to a tabsheet of a page
> control,
> > the DLL form just disappears (doesn't appear on the tabsheet) and I
> get an
> > exception when the program finishes. The same code works when I
> choose
> > any other form to place on the tabsheet except the one from the DLL.
> Do
> > you have to do something special to get that to work?
> >
> > Cheers,
> >
> > Carl Reynolds Ph: +64-9-4154790
> > CJN Technologies Ltd. Fax: +64-9-4154791
> > [EMAIL PROTECTED] DDI: +64-9-4154795
> > PO Box 302-278, North Harbour, Auckland, New Zealand
> > 12 Piermark Drive, North Harbour Estate, Auckland, NZ
> > Visit our website at http://www.cjntech.co.nz/
> >
> > -----Original Message-----
> > From: [EMAIL PROTECTED] [SMTP:[EMAIL PROTECTED]]
> > Sent: Friday, September 03, 1999 1:13 AM
> > To: Multiple recipients of list delphi
> > Subject: Re: RE: [DUG]: Forms from DLLs
> >
> > Aaarrgghh, when did they add the rest of the to the help. It wasnt
> > there last time I read it probably in D2.
> >
> > On 2 Sep 99 at 11:40, Aaron Scott-Boddendijk wrote:
> >
> > > >> It's not the problem of NOT including the Borland shared Memory
> > > >> Manager if strings are being used?
> > > >> in the DLL uses statements??
> > >
> > > > No, thats only required for sharing long strings. Hmm. maybe it
> is.
> > > > I will have another look at it later.
> > >
> > > As the snippet from the help below states... Strings ain't the
> only
> > evil...
> > > All dynamic arrays as well or anything allocated with New or
> GetMem...
> > > so that's likely to cover a lot of the VCL...
> > >
> > > "If a DLL exports routines that pass long strings or dynamic
> arrays
> > > as parameters or function results (whether directly or nested in
> records
> > > or objects), then the DLL and its client applications (or DLLs)
> must all
> > > use the ShareMem unit. The same is true if one application or DLL
> > > allocates memory with New or GetMem which is deallocated by a call
> > > to Dispose or FreeMem in another module. ShareMem should always
> > > be the first unit listed in any program or library uses clause
> where it
> > > occurs."
> > >
> > > --
> > > Aaron Scott-Boddendijk
> > > Jump Productions
> > > (07) 838-3371 Voice
> > > (07) 838-3372 Fax
> > >
> > >
> > >
> >
> ----------------------------------------------------------------------
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> > > New Zealand Delphi Users group - Delphi List -
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> > > Website: http://www.delphi.org.nz
> > >
> > Rohit
> >
> >
> ======================================================================
> > CFL - Computer Fanatics Ltd. 21 Barry's Point Road, AKL, New
> Zealand
> > PH (649) 489-2280
> > FX (649) 489-2290
> > email [EMAIL PROTECTED] or [EMAIL PROTECTED]
> >
> ======================================================================
> >
> >
> ----------------------------------------------------------------------
> ----
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> [EMAIL PROTECTED]
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> ----------------------------------------------------------------------
> -----
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