C# Win: Wireless Zero Config API

[ShadowLocke]

Hi all,

I am trying to tap in to wzcsapi.dll in windows using c#. Im able to call the funtion WZCEnumInterfac es with no problem. The problem I have is when I call the function WZCQueryInterfa ce it gives me an error return code of 2 (File not found) I cant figure out whats going on here..what file is it looking for?

public struct RAW_DATA
        {
            public uint dwDataLen;
            public uint pData;
        }

        public struct INTF_ENTRY
        {
            public uint wszGuid;
            public uint wszDescr;
            public UInt32 ulMediaState;
            public UInt32 ulMediaType;
            public UInt32 ulPhysicalMediaType;
            public int nInfraMode;
            public int nAuthMode;
            public int nWepStatus;
            public uint dwCtlFlags;
            public uint dwCapabilities;
            public RAW_DATA rdSSID;
            public RAW_DATA rdBSSID;
            public RAW_DATA rdBSSIDList;
            public RAW_DATA rdStSSIDList;
            public bool bInitialized;
        }

        public struct INTF_KEY_ENTRY
        {
            public uint wszGuid;
        }

        public struct INTFS_KEY_TABLE
        {
            public uint dwNumIntfs;
            public INTF_KEY_ENTRY pIntfs;
        }

        [DllImport("wzcsapi.dll")]
        public static extern uint WZCEnumInterfaces(string pSrvAddr, ref INTFS_KEY_TABLE pIntfs);

        [DllImport("wzcsapi.dll")]
        public static extern uint WZCQueryInterface(string pSrvAddr, uint dwInFlags, ref INTF_ENTRY pIntf, ref uint pdwOutFlags);


        static void Main(string[] args)
        {
            INTFS_KEY_TABLE pIntfs = new INTFS_KEY_TABLE();
            INTF_ENTRY Intf = new INTF_ENTRY();
            uint uiRet;
            uint uiInFlags = 0xFFFFFFFF;
            uint uiOutFlags = 0;

            uiRet = WZCEnumInterfaces(null, ref pIntfs);

            Intf.wszGuid = pIntfs.pIntfs.wszGuid;

            uiRet = WZCQueryInterface(null, uiInFlags, ref Intf, ref uiOutFlags);

           //uiRet = 2
        }

[ShadowLocke]

Ah..the file it is looking for is the string that wzsGuid points to. It's the network interface dll file. I was passing the pointer (which is a number) to WZCQueryInterfa ce, and it wanted the string it self.

Now if I can only figure out why i can get the SSID length but not the SSID it self...

[imkaush]

Hi ShadowLocke,

I am also trying to use Wireless Zero Config API (WZCQueryInterf aceEx and WZCSetInterface Ex) in a WinCE 6 C# project.

The project builds successfully but I get the following exception:
Calling WZCQueryInterfa ceEx returns a 'NotSupportedEx ception'

Here's my code snippet:

public struct RAW_DATA
{
    public UInt32 dwDataLen;
    public char pData;
}

public struct INTF_ENTRY_EX
{
     public string wszGuid;
     public string wszDescr;
     public UInt32 ulMediaState;
     public UInt32 ulMediaType;
     public UInt32 ulPhysicalMediaType;
     public int nInfraMode;
     public int nAuthMode;
     public int nWepStatus;
     public UInt32 dwCtlFlags;     // control flags (see INTFCTL_* defines)
     public UInt32 dwCapabilities; // capabilities flags (see INTFCAP_* defines)
     public RAW_DATA rdSSID;         // encapsulates the SSID raw binary
     public RAW_DATA rdBSSID;        // encapsulates the BSSID raw binary
     public RAW_DATA rdBSSIDList;    // encapsulates one WZC_802_11_CONFIG_LIST structure
     public RAW_DATA rdStSSIDList;   // encapsulates one WZC_802_11_CONFIG_LIST structure
     public RAW_DATA rdCtrlData;     // data for various control actions on the interface  
#if UNDER_CE
     public bool            bInitialized;   //  To track caller that freeing
     //  the same structure more than one time..
#endif
     public UInt32 nWPAMCastCipher;

     public UInt32 ulVersion;
     public RAW_DATA rdNicCapabilities;  // points to INTF_80211_CAPABILITY.
     public RAW_DATA rdPMKCache;         // points to NDIS_802_11_PMKID.
     public UInt32 PMKCacheFlags;
}
public INTF_ENTRY_EX g_IntfEx = new INTF_ENTRY_EX();

[DllImport("wzcsapi.dll")]
     public static extern UInt32 WZCSetInterfaceEx(
                              string pSrvAddr,
                              UInt32 dwInFlags,
                              ref INTF_ENTRY_EX pIntfEx,
                              ref UInt32 pdwOutFlags);
[DllImport("wzcsapi.dll")]
public static extern UInt32 WZCQueryInterfaceEx(
                              string pSrvAddr,
                              UInt32 dwInFlags,
                              ref INTF_ENTRY_EX pIntfEx,
                              ref UInt32 pdwOutFlags);

int wifiOnOff(int isOn)
{
    UInt32 dwError, dwOutFlags =0;

    g_IntfEx.wszGuid = "NETRTWLANU1";

    WZCQueryInterfaceEx(
                null,
                INTF_ALL,
                ref g_IntfEx,
                ref dwOutFlags);

    // wifi on
	        if(isOn == 1)
	        {
		        g_IntfEx.dwCtlFlags |= INTFCTL_ENABLED;
	        }
	        // wifi off
	        else
	        {
		        g_IntfEx.dwCtlFlags &= ~INTFCTL_ENABLED;
	        }

	        // Apply settings
	        dwError = WZCSetInterfaceEx(
		        null, 
		        INTF_ALL_FLAGS | INTF_PREFLIST,
		        ref g_IntfEx,
		        ref dwOutFlags);

	        if( dwError != ERROR_SUCCESS )
	        {
		        goto WIFI_ONOFF_FAIL;
	        }

	        return 1;
        WIFI_ONOFF_FAIL:

	        return 0;
}

[madankarmukta]

@ShadowLocke ,

Can you please put the code here , the place where you are calling these functions - WZCQueryInterfa ceEx and WZCSetInterface Ex.

Best Regards.