(Unicode C++) Automatically Determine FTP Proxy Method

Tries each of the five possible ProxyMethod settings and returns the value (1-5) of the ProxyMethod that succeeded.

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#include <CkFtp2W.h>

void ChilkatSample(void)
    {
    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkFtp2W ftp;

    ftp.put_Hostname(L"www.example-code.com");
    ftp.put_Username(L"example-code.com");
    ftp.put_Password(L"****");

    ftp.put_ProxyHostname(L"ftp.myproxyhost.com");
    ftp.put_ProxyPort(21);
    // Note: Your FTP Proxy server may or may not require authentication.
    ftp.put_ProxyUsername(L"myProxyUsername");
    ftp.put_ProxyPassword(L"myProxyPassword");

    // The ProxyMethod should be an integer value between 1 and 5.
    // If you know your FTP proxy server's authentication scheme,
    // you may set it directly.  To determine the ProxyMethod,
    // call DetermineProxyMethod.  A return value of -1 indicates a failure.
    // A return value of 0 indicates that nothing worked.
    // A return value of 1-5 indicates the ProxyMethod that was 
    // successful, and this should be the value used for the ProxyMethod
    // property.

    int pMethod = ftp.DetermineProxyMethod();
    wprintf(L"%d\n",pMethod);

    bool success = ftp.Disconnect();
    }