My guess is it has something to with the Vista window renderer
(http://msdn.microsoft.com/en-us/library/aa969540(VS.85).aspx). It is far more
memory intensive. Normally you would not see an issue, but some boxes uses chip
sets that use main memory for video memory.

You could try turning of compositing, under the performance settings. Better yet
set the performance settings to "performance". Windows 7 has add some
performance increases in this area.

Might be worth a try.

--- In wtl@yahoogroups.com, "jochen.stier" <jochen.stier@...> wrote:
>
> Hi,
>
>
>
> I am having the oddest problem with wtl8 on Vista. Opening a file dialog
brings up a wait cursor and then my App hangs; no window appears. Of course this
runs fine under XP.
>
> CFileDialog lDialog(TRUE);
>
> lDialog.doModel();
>
> I am using Visual Studio 2005 and I have recently upgraded to wtl8 after I had
the same problem with wtl71. I have been googling the problem and it turns out
that the CFileDialog are handled differently under Vista, but I could not really
find a solution to the problem. Does anyone have a hunch what could cause this
problem? Do I need some special entry in stdafx.h or use a particular compiler
flag? This is what my stdafx.h looks like
>
>
> #define WINVER 0x0400
> #define _WIN32_WINNT 0x0500
> #define _WIN32_IE 0x0501
>
> #define _WTL_USE_CSTRING
> #define _ATL_APARTMENT_THREADED
>
> #include <atlbase.h>
> #include <atlapp.h>
>
> extern CAppModule _Module;
>
> #include <atlcom.h>
> #include <atlhost.h>
> #include <atlwin.h>
> #include <atlctl.h>
>
> …
>
> Cheers
>