I'm trying to automate connecting to a WiFi network by adding WlanConnect() to the splendid Win32::Wlan::API. System is a Win XP SP3 box and Win32::Wlan::API works flawlessly.

Here's what I've got so far, modeled after the existing code:

sub WlanConnect {
    croak "Wlan functions are not available" unless $wlan_available;
    my ($handle, $guuid, $profilename, $ssid) = @_;
    
    # possibly overkill, a pDot11Ssid = 0 should suffice
    my $pDot11Ssid = Win32::API::Struct->new('DOT11_SSID');
    $pDot11Ssid->{uSSIDLength} = length $ssid;
    $pDot11Ssid->{ucSSID}      = $ssid;

    my $Wlan_connection_parameters = Win32::API::Struct->new('WLAN_CON
+NECTION_PARAMETERS');
    $Wlan_connection_parameters->{wlanConnectionMode} = 0;
    $Wlan_connection_parameters->{strProfile}         = $profilename;
    $Wlan_connection_parameters->{pDot11Ssid}         = $pDot11Ssid;
    $Wlan_connection_parameters->{pDesiredBssidList}  = 0;
    $Wlan_connection_parameters->{dot11BssType}       = 3;
    $Wlan_connection_parameters->{dwFlags}            = 0;

    $API{ WlanConnect }->Call($handle, $guuid, $Wlan_connection_parame
+ters, 0) == 0
      or die "$^E";
};

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$profilename is an UTF-16LE encoded string while $ssid is just a perl string. The profile named by $profilename was freshly created and WlanSetProfile()'d properly (I can connect manually; WlanSetProfile() added by me).

WLAN_CONNECTION_PARAMETERS ist typedef'd as:

Win32::API::Struct->typedef('WLAN_CONNECTION_PARAMETERS', qw(
  WLAN_CONNECTION_MODE wlanConnectionMode;
  LPCWSTR              strProfile;
  PDOT11_SSID          pDot11Ssid;
  PDOT11_BSSID_LIST    pDesiredBssidList;
  DOT11_BSS_TYPE       dot11BssType;
  DWORD                dwFlags;
  ));

[download]

while DOT11_SSID (possibly unnecessarily) typedef'd as

Win32::API::Struct->typedef ('DOT11_SSID', qw(
  ULONG uSSIDLength;
  UCHAR ucSSID;
));

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Well, the code does not connect and referencing the Call line, $^E contains:

An attempt was made to reference a token that does not exist at...

[download]
Any idea what is missing or where things go wrong?

In reply to Adding WlanConnect() to Win32::Wlan::API by tomsell

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