Re: ShellApi changes for Vista?

I have an application developed on VS2003 using C++ and MFC but on a mixed
platform. This application runs fine on XP. When i migrated the code to
VS2005 then too the application is running fine on XP. But when i installed
the VS2003 installer on Vista then i m facing problems.

AfxRegisterClass() in InitInstance() of the CWinApp derived class returns
false in Vista and the application crashes.

I wish to know what are the changes required to be done with the shell API
(shellAPI.h) to rectify this problem.

Here's the code snippet

WNDCLASS wndcls;
        memset(&wndcls, 0, sizeof(WNDCLASS));
        wndcls.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW;
        wndcls.lpfnWndProc = ::DefWindowProc;
        wndcls.hInstance = AfxGetInstanceHandle();
        wndcls.hCursor = LoadCursor( IDC_ARROW );
        wndcls.hbrBackground = NULL;
        wndcls.lpszMenuName = NULL;
        wndcls.lpszClassName = MY_CLASS;

        // determine if efIcon.ico exists, if it does use that icon for the main
window, otherwise use IDR_MAINFRAME
        SHFILEINFO shinfo;
        CString strIconPath = g_strInstallDir;
        // add a backslash if necessary
        if (strIconPath.GetAt(strIconPath.GetLength() - 1) != '\\')
                strIconPath += '\\';
        strIconPath += _T("efIcon.ico");
        SHGetFileInfo(strIconPath, NULL, &shinfo, sizeof(shinfo), SHGFI_DISPLAYNAME
| SHGFI_ICON | SHGFI_SMALLICON);
        if(!shinfo.hIcon)
                wndcls.hIcon = LoadIcon(IDR_MAINFRAME);
        else
                wndcls.hIcon = shinfo.hIcon;

        if(!AfxRegisterClass(&wndcls)) //PROBLEM HERE
        {
                TRACE(_T("Class Registration Failed\n"));
                return FALSE;
        }

        bClassRegistered = TRUE;

        // Register the application's document templates. Document templates
        // serve as the connection between documents, frame windows and views.
        CMultiDocTemplate* pDocTemplate;

Hope for help

Mustanseer