Stub DDE interface for Progman.exe

[Rob Shearman]

2009/2/5 Jeremiah Flerchinger <jeremiah.flerchinger at gmail.com>:
> On Thu, 2009-02-05 at 18:58 +0100, Rolf Kalbermatter wrote:
>> "Jeremiah Flerchinger" <jeremiah.flerchinger at gmail.com> wrote:
>>
>> > The shell32.dll DDE callback isn't always initialized & handling
>> > Progman calls for all apps. I've seen Progman calls pass
>> > through the DDE_client and DDE_server of user32.dll instead
>> > and never go through shell32.dll.
>>
>> That would IMHO only be possible if the shell executable, which normally is
>> just explorer
>> creating the actual desktop view had been replaced by a different executable
>> that does
>> not initialize the shell DDE interface properly.
>>
>> Rolf Kalbermatter
>>
> DdeConnect, DDeInitialize, and DDeDisconnect can be called directly by
> including Windows.h and importing the calls from user32
> (http://msdn.microsoft.com/en-us/library/ms648745(VS.85).aspx). DDE
> calls can then be made with SendMessage or PostMessage.
>
> I found a couple apps that appear to do this. Wine does not
> automatically start explorer.exe or initialize the shell DDE interface,
> nor does it route the DdeConnect routine in user32.dll to the DdeConnect
> routine in the shell32.dll. The DDE interface in shell32 and user32 will
> need to call the same set of routines from either method for full
> functionality of DDE calls, including those to Progman.

http://en.wikipedia.org/wiki/Library_(computing)#Dynamic_linking

-- 
Rob Shearman