Re: DialogBox - 32bit and 64bit differences

From:
"Tom Serface" <tom@camaswood.com>
Newsgroups:
microsoft.public.vc.mfc
Date:
Wed, 1 Apr 2009 10:10:19 -0700
Message-ID:
<FCEAA196-34FA-4953-9E5B-A5E3036772B3@microsoft.com>
If I were you (and using MFC) I would just use the normal resource editor to
create dialogs and then it wouldn't matter whether you compiled them with 32
bit or 64 bit. In fact, I think you can use the same code and do different
compile options if you want different builds. Then you wouldn't have to
worry about any of this stuf.f

Tom

"Les Neilson" <l.neilson@nospam.co.uk> wrote in message
news:rPCdneMvIPt9CE7UnZ2dnUVZ8u6dnZ2d@eclipse.net.uk...

I have been tasked with adding the 64bit compiler to our projects (i.e.
adding Win64 platform to the existing Win32 platform) ensuring that the
64bit versions of the output files go to a different directory than the
32bit ones. (i.e. Debug_x64 and Debug, Release_x64 and Release and so on)
Everything is going well when I run the resulting 64bit exes, apart from
calls to DialogBox. The 32bit exe shows the dialog(s) ok but the 64 bit
exe doesn't.

for example the code :

DialogBox( Hins, MAKEINTRESOURCE(IDD_GENM), hwndParent,
(DLGPROC)GenMProc);
returns -1 in the 64 bit exe.

I added code to call GetLastError which is 1812
and FormatMessage which says the error is :
"The specified resource file did not contain a resource section"

IDD_GENM is #defined as 131 in the file "dialog/resource.h"
In the file "dialog/abc.rc" there is a "IDD_GENM DIALOGEX" section

I loaded the 64bit exe into the IDE and it showed the resources were
there,
under Dialog I see (among others)
131 [English (United States)] as I would expect.
a double click on the entry brings up the dialog.

Can anyone suggest something I have missed ?
I hope I have provided sufficient information.

Thanks
Les

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