WNetGetConnection

CHAR szDeviceName[80];
DWORD dwResult, cchBuff = sizeof(szDeviceName);
 
// Call the WNetGetConnection function.
//
dwResult = WNetGetConnection("z:",
    (LPSTR) szDeviceName,
    &cchBuff);
 
switch (dwResult)
{
    //
    // Print the connection name or process errors.
    //
    case NO_ERROR:
        TextOut(hdc, 10, 10, (LPSTR) szDeviceName,
            lstrlen((LPSTR) szDeviceName));
        break;
    //
    // The device is not a redirected device.
    //
    case ERROR_NOT_CONNECTED:
        TextOut(hdc, 10, 10, "Device z: not connected.", 24);
    //
    // The device is not currently connected,
    //  but it is a persistent connection.
    //
    case ERROR_CONNECTION_UNAVAIL:
        TextOut(hdc, 10, 10, "Connection unavailable.", 23);
    //
    // Call an application-defined error handler.
    //
    default:
        NetErrorHandler(hwnd, dwResult, (LPSTR)"WNetGetConnection");
        return FALSE;
}