Re: Win32 dialogs/resource grief (longish)

[John English <je@bton.ac.uk>]

David Botton wrote:
> 
> Actually that was not his problem. Your version of the code would also have
> seen the same problem if you threw in the second dialog box.
> 
> BTW rcl also does not compile the resource to coff correctly in that case
> either (mutliple dialogs). Windres or M$ cvtres are the only options here.
> 
> David Botton
> 
> Jerry van Dijk wrote in message <38bdb710_1@news2.prserv.net>...
> >Basically, the problem is that passing around data within the
> >Win32 environment takes more care. Explaining it all would take
> >more then a posting, but hopefully the code below will point in
> >the right direction.

As it happens, Windres seems to give me the same result. I've haven't
got cvtres so I haven't tried it, but I manually converted my .rc
file into about 500 lines of type declarations for DLGTEMPLATE
structures, with delicate rep clauses and alignment clauses (yuk!),
and everything now works perfectly. But if I can find a copy of
cvtres I'll give it a try -- I don't want to have to do any more
manual conversions if I can avoid it! A pox on tools that don't
work...

Incidentally, a funny with the DLGTEMPLATE. In Win32.WinUser, the
size clause for DLGTEMPLATE says "for 'Size use 18*8" -- but when
I set up my DLGTEMPLATE structure like so:

  type MyDlg is
    record
      Dialog : DLGTEMPLATE;  -- 18 bytes
      Menu   : WORD := 0;    -- 2 bytes
      Class  : WORD := 0;    -- 2 bytes
      ...
    end record;

  for MyDlg use
    record
      Dialog at 0  range 0..18*8-1;
      Menu   at 18 range 0..15;
      Class  at 20 range 0..15;
    end record;

Gnat complains that at least 160 bits (20 bytes) are required for
Dialog, so I have to drop Menu from the rep clause (but thankfully
it still works fine) -- any idea why 20 bytes are required when the
size has explicitly been set to 18 bytes?

Anyway, many thanks for your help, David.

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