'   // CONA_OK
    '   // ECONA_INVALID_POINTER
    '   // ECONA_NAME_ALREADY_EXISTS
    '   // ECONA_NOT_INITIALIZED
    '   // ECONA_UNKNOWN_ERROR
    '   //
    Public Declare Function CONARenameFriendlyName Lib "ConnAPI" (ByVal hDMHandle As Integer, <MarshalAs(UnmanagedType.LPWStr)> ByVal pstrSerialNumber As String, <MarshalAs(UnmanagedType.LPWStr)> ByVal pstrNewFriendlyName As String) As Integer
    '   //=========================================================

    '   //=========================================================
    '   // CONARegisterNotifyCallback
    '   //
    '   // Description:
    '   //  Registers notification call back function to connectivity API
    '   //
    '   // Parameters:
    '   //  hDMHandle       [in] Device manager handle
    '   //  iState          [in] Used to define the action
    '   //                       API_REGISTER used in registeration
    '   //                       API_REGISTER used in removing the registeration
    '   //  pfnNotify       [in] Function pointer of the call back method
    '   //
    '   // Return values:
    '   // CONA_OK
    '   // ECONA_INVALID_POINTER
    '   // ECONA_INVALID_PARAMETER
    '   // ECONA_NOT_INITIALIZED
    '   // ECONA_UNKNOWN_ERROR
    '   //
    Public Declare Function CONARegisterNotifyCallback Lib "ConnAPI" (ByVal hDMHandle As Integer, ByVal iState As Integer, ByVal pfnNotify As DeviceNotifyCallbackDelegate) As Integer
    '   //=========================================================
    '   //=========================================================
    '   // CONASearchDevices 
    '   //
    '   // Description:
    '   //	CCONASearchDevices functions search all devices from the target media. 
    '   //  The target media that can be used is Bluetooth at the moment.
    '   //
    '   //  CONASearchDevices allocates and sets devices information to 
    '   //  CONAPI_CONNECTION_INFO structs and returns pointer to structs.  
    '   //  Connectivity API-user MUST releases the returned pointer by calling the 
    '   //  CONAFreeConnectionInfoStructures function. 
    '   //
    '   //	Every CONAPI_CONNECTION_INFO struct includes the media and device information.
    '   //	The struct's dwState parameter defines the paired and trusted information from 
    '   //  device. It has the following values:
    '   //  Parameter value					Description					Macros for check the values 
    '   //																(If value is true, macro returns 1)
    '   //	CONAPI_DEVICE_UNPAIRED			Device in not paired.		CONAPI_IS_DEVICE_UNPAIRED(dwState)
    '   //	CONAPI_DEVICE_PAIRED			Device is paired.			CONAPI_IS_DEVICE_PAIRED(dwState)
    '   //	CONAPI_DEVICE_PCSUITE_TRUSTED	Device is PC Suite trusted.	CONAPI_IS_PCSUITE_TRUSTED(dwState)
    '   //
    '   //	Connectivity API can add more values afterwards so Connectivity API-user should 
    '   //	always use defined macros to check those values!

    '   //
    '   // Parameters:
    '   //	hDMHandle				[in] Existing device management handle.
    '   //	dwSearchOptions			[in] Search options values:
    '   //			API_MEDIA_BLUETOOTH: Get devices from bluetooth media. 
    '   //				This value must be used.
    '   //			CONAPI_ALLOW_TO_USE_CACHE: Get all devices from cache if available. 
    '   //				If cache is not available function fails with error: ECONA_CACHE_IS_NOT_AVAILABLE.
    '   //				This value is optional and can be used with other values.
    '   //			One of the next values can be used at the time:
    '   //			CONAPI_GET_ALL_PHONES: Get all phones from target media. Includes unpaired, 
    '   //				paired and PC Suite trusted phones. 
    '   //			CONAPI_GET_PAIRED_PHONES:Get all paired phones from target media. Includes 
    '   //				paired (and PC Suite trusted) phones. 
    '   //			CONAPI_GET_TRUSTED_PHONES:Get all PC Suite trusted phones from target media. 
    '   //				Includes all PC Suite trusted phones, which are paired.
    '   //	dwSearchTime			[in]  Maximum search time in seconds. Note: Bluetooth device
    '   //			discovery can takes several minutes if there are a lot of devices on range!
    '   //	pfnSearchNotify			[in]  Pointer to search notification callback function. Value
    '   //			can be NULL if notification is not needed.
    '   //	pdwNumberOfStructures	[out] Number of CONAPI_CONNECTION_INFO structures. 
    '   //	ppConnInfoStructures	[out] Pointer to CONAPI_CONNECTION_INFO structure(s). 

    '   //	hDMHandle			[in] Device manager handle
    '   //	pstrSerialNumber	[in] Serial number of the device.
    '   //	pstrNewFriendlyName [in] New Device Friendly Name .
    '   //
    '   // Return values:
    '   // CONA_OK
    '   // ECONA_INVALID_POINTER
    '   // ECONA_INVALID_HANDLE
    '   // ECONA_DEVICE_NOT_FOUND
    '   // ECONA_FAILED_TIMEOUT
    '   // ECONA_NO_CONNECTION_VIA_MEDIA
    '   // ECONA_MEDIA_IS_NOT_WORKING
    '   // ECONA_CACHE_IS_NOT_AVAILABLE
    '   // ECONA_SUSPEND
    '   // ECONA_NOT_ENOUGH_MEMORY
    '   // ECONA_NOT_INITIALIZED
    '   // ECONA_NOT_SUPPORTED_PC
    '   // ECONA_CANCELLED
    '   // ECONA_UNKNOWN_ERROR

    Public Declare Function CONASearchDevices Lib "ConnAPI" (ByVal hDMHandle As Integer, ByVal dwSearchOptions As Integer, ByVal dwSearchTime As Integer, ByVal pfnSearchNotify As SearchCallbackDelegate, ByRef pdwNumberOfStructures As Integer, ByRef pConnInfoStructures As IntPtr) As Integer
    '   //=========================================================

    '   //=========================================================
    '   // CONAFreeConnectionInfoStructures
    '   //
    '   // Description:
    '   //	CONAFreeDeviceStructure releases the CONAPI_CONNECTION_INFO structs, 
    '   //	which CONASearchDevices function is allocated.
    '   //
    '   // Parameters:
    '   //	dwNumberOfStructures	[in] Number of CONAPI_CONNECTION_INFO structures.
    '   //	ppConnInfoStructures	[in] Pointer to CONAPI_CONNECTION_INFO structure(s).
    '   //
    '   // Return values:
    '   //	CONA_OK
    '   //	ECONA_INVALID_POINTER
    '   //	ECONA_INVALID_PARAMETER
    '   //	ECONA_UNKNOWN_ERROR

    Public Declare Function CONAFreeConnectionInfoStructures Lib "ConnAPI" (ByVal dwNumberOfStructures As Integer, ByRef pConnInfoStructures As IntPtr) As Integer
    '   //=========================================================

    '   //=========================================================
    '   // CONAChangeDeviceTrustedState
    '   //
    '   // Description:
    '   //	CONAChangeDeviceTrustedState functions changes device's 
    '   //	trusted state. It has the following operation values:
    '   //	Value							Description
    '   //	CONAPI_PAIR_DEVICE				Pair device.
    '   //	CONAPI_UNPAIR_DEVICE			Unpair device from Bluetooth stack.
    '   //	CONAPI_SET_PCSUITE_TRUSTED		Set device to PC Suite trusted state.
    '   //		System recognise the device and sets it to trusted state. Connectivity 
    '   //		API starts sends device notification from device.Note: Device must be 
    '   //		paired. Value can be used with CONAPI_PAIR_DEVICE. 
    '   //	CONAPI_SET_PCSUITE_UNTRUSTED	Remove PC Suite trusted information from 
    '   //		System. Connectivity API does not send device notification from device 
    '   //		anymore.Note: Device can be paired or unpaired state. Value can be used 
    '   //		with CONAPI_UNPAIR_DEVICE.

    '   //
    '   // Parameters:
    '   //	hDMHandle			[in] Existing device management handle.
    '   //	dwTrustedOperation	[in] Operation values: 
    '   //								CONAPI_PAIR_DEVICE
    '   //								CONAPI_UNPAIR_DEVICE
    '   //								CONAPI_SET_PCSUITE_TRUSTED 
    '   //								CONAPI_SET_PCSUITE_UNTRUSTED
    '   //	pstrAddress			[in] Device address. If device is connected via Bluetooth 
    '   //				media, address must be Device BT address (see pstrAddress parameter 
    '   //				from CONAPI_CONNECTION_INFO Structure)
    '   //	pstrPassword		[in] Password string for pairing. String can include only 
    '   //				the numbers (0-9) characters.Value used only with CONAPI_PAIR_DEVICE 
    '   //				operation. With other operations value should be NULL.
    '   //	pstrName			[in] Reserved for future use, the value must be NULL.

    '   //
    '   // Return values:
    '   //	CONA_OK
    '   //	ECONA_INVALID_POINTER
    '   //	ECONA_INVALID_HANDLE
    '   //	ECONA_DEVICE_NOT_FOUND
    '   //	ECONA_NOT_SUPPORTED_DEVICE
    '   //	ECONA_CONNECTION_FAILED
    '   //	ECONA_CONNECTION_FAILED
    '   //	ECONA_CONNECTION_BUSY
    '   //	ECONA_CONNECTION_LOST
    '   //	ECONA_DEVICE_PAIRING_FAILED
    '   //	ECONA_DEVICE_ PASSWORD_WRONG
    '   //	ECONA_DEVICE_ PASSWORD_INVALID
    '   //	ECONA_FAILED_TIMEOUT
    '   //	ECONA_NO_CONNECTION_VIA_MEDIA
    '   //	ECONA_MEDIA_IS_NOT_WORKING
    '   //	ECONA_SUSPEND
    '   //	ECONA_NOT_ENOUGH_MEMORY
    '   //	ECONA_NOT_INITIALIZED
    '   //	ECONA_NOT_SUPPORTED_PC
    '   //	ECONA_UNKNOWN_ERROR


    Public Declare Function CONAChangeDeviceTrustedState Lib "ConnAPI" (ByVal hDMHandle As Integer, ByVal dwTrustedOperation As Integer, <MarshalAs(UnmanagedType.LPWStr)> ByVal pstrAddress As String, <MarshalAs(UnmanagedType.LPWStr)> ByVal pstrPassword As String, <MarshalAs(UnmanagedType.LPWStr)> ByVal pstrName As String) As Integer
    '   //=========================================================
    '
    '   //=========================================================
    '   // CONAGetDeviceInfo
    '   //
    '   // Description:
    '   //	CONAGetDeviceInfo function sets the device specific information to the structure. 
    '   //  The structure type and allocation depends on which information is requested.
    '   //	The structure must be freed or clear by calling the CONAFreeDeviceInfoStructure function.
    '   //
    '   // Parameters:
    '   //	hDMHandle			[in]  Existing device management handle.
    '   //	pstrSerialNumber	[in]  Device's serial number.
    '   //	dwStructureType		[in]  Structure type value:
    '   //								CONAPI_DEVICE_GENERAL_INFO
    '   //								CONAPI_DEVICE_PRODUCT_INFO
    '   //								CONAPI_DEVICE_PROPERTIES_INFO
    '   //								CONAPI_DEVICE_ICON_INFO
    '   //	ppStructure			[out] Pointer to the information structure.
    '
    '   // 
    '   // Return values:
    '   // CONA_OK
    '   // ECONA_INVALID_POINTER
    '   // ECONA_INVALID_PARAMETER
    '   // ECONA_INVALID_HANDLE
    '   // ECONA_DEVICE_NOT_FOUND
    '   // ECONA_NOT_INITIALIZED
    '   // ECONA_NOT_SUPPORTED_DEVICE
    '   // ECONA_NOT_SUPPORTED_MANUFACTURER
    '   // ECONA_NOT_ENOUGH_MEMORY
    '   // ECONA_UNKNOWN_ERROR
    '   //
    '	PCCS_DMAPI CONAGetDeviceInfo(
    '						DMHANDLE	 hDMHandle, 
    '						const WCHAR* pstrSerialNumber, 
    '						DWORD		 dwStructureType,
    '						LPVOID*		 ppStructure
    '						);
    Public Declare Function CONAGetDeviceInfo Lib "ConnAPI" (ByVal hDMHandle As Integer, <MarshalAs(UnmanagedType.LPWStr)> ByVal pstrSerialNumber As String, ByVal dwStructureType As Integer, ByRef ppDeviceInfo As IntPtr) As Integer

    '   //========================================================= 
    '
    '   //=========================================================
    '   // CONAFreeDeviceInfoStructure
    '   //
    '   // Description:
    '   //	CONAFreeDeviceInfoStructure releases the (e.g.  
    '   //  CONAPI_DEVICE_GEN_INFO) structure that CONAGetDeviceInfo function has allocated.
    '   //
    '   // Parameters:
    '   //	dwStructureType	[in] Structure type value:
    '   //							CONAPI_DEVICE_GENERAL_INFO
    '   //							CONAPI_DEVICE_PRODUCT_INFO
    '   //							CONAPI_DEVICE_PROPERTIES_INFO
    '   //							CONAPI_DEVICE_ICON_INFO
    '   //	pStructure		[in] Pointer to the structure that the CONAGetDeviceInfo function has allocated
    '   //
    '   // Return values:
    '   //	CONA_OK
    '   //	ECONA_INVALID_POINTER
    '   //	ECONA_INVALID_PARAMETER
    '   //	ECONA_UNKNOWN_ERROR
    '   //
    '	PCCS_DMAPI CONAFreeDeviceInfoStructure( DWORD	dwStructureType, LPVOID	pStructure );
    Public Declare Function CONAFreeDeviceInfoStructure Lib "ConnAPI" (ByVal dwStructureType As Integer, ByVal pDeviceInfo As IntPtr) As Integer
    '   //=========================================================

End Module