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Determining if MSN Is in the Sign-in State

The following code example shows the usage of a mutex object to determine if MSN Explorer is signed in. When you have finished using the handle, be sure to call the CloseHandle function.

Note  This mutex object is available for use in checking MSN Explorer 7.x sign-in status. It may be unavailable in subsequent versions.


    HANDLE hMSNSignedInMutex;

    hMSNSignedInMutex = OpenMutex(SYNCHRONIZE, FALSE, 
        "{ECCC50B5-064B-4693-B104-925714A4C74B}");

    if (hMSNSignedInMutex != NULL)
    {
        // MSN Explorer is signed in
    }


 

 

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