Share data between Application.

Hi,

    I know using CreateMapFile() to share data between processes. But my
data isn't allocated in continuous memory block but in link list. So....

    I tried an application with ShareMem.pas used at the very first Uses
section,  can share its data with called DLL (also use ShareMem.pas in the
first) without problem.

    But how can I share data with another application?

    let said I have two applications, A and B.
    I use ShareMem.pas in both A and B. Then I passing data pointer (stored
in wparam)  from A to B by using....

   type
       pMyData=^myData;
       MyData=record
          a,b,c:integer;
          next:pMyData;
       end;

  var
      data:MyData;


    in A:
        data.a:=1; data.a:=2; data.a:=3;

        wParam:=integer(@data);
        PostMessage(HWND_BroadCast,WM_SendEzfCam, WParam, LParam);

   in B:
    I can get message "WM_SendEzfCam"  in B, and lParam value. Then I tried
typecast it...
        data:=pMyData(WParam)^;

  but the data is (0,0,0, nil) all the time.

    Can't A and B share Data even they use ShareMem.pas?


Thanks,

Daniel