WSALookupServiceBegin (Bluetooth)

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Windows Embedded CE 6.0 R3

4/8/2010

This function initiates a client query that is constrained by the information contained within a WSAQUERYSET (Bluetooth) structure. This function returns a handle that is used by the WSALookupServiceNext (Bluetooth) function.

Note

This function is actually a Winsock function. However, the information that is presented in it is specific to Bluetooth.

Syntax

INT WSALookupServiceBegin(
  LPWSAQUERYSET pQuerySet,
  DWORD dwFlags,
  LPHANDLE lphLookup
);

Parameters

  • pQuerySet
    [in] Pointer to the search criteria.

  • dwFlags
    [in] The following table shows a list of flags for this parameter.

    Flag Description

    LUP_CONTAINERS

    Specifies that device discovery is to be performed. If this flag is not set, service discovery will be performed instead.

    LUP_RES_SERVICE

    Searches the local SDP database. Clear this flag to search for services on a peer device.

Return Value

None.

Remarks

If LUP_CONTAINERS is set, SDP performs a device inquiry to find other Bluetooth devices in the area. This function performs the query. The WSALookupServiceNext function retrieves the results one device at a time.

You can specify extra parameters for device inquiries by having the lpsqRestriction->IpBlob point to a BTHNS_INQUIRYBLOB structure.

If LUP_CONTAINERS is not set, an SDP service search is performed. The lpsqRestrictions->IpBlob must point to a BTHNS_RESTRICTIONBLOB data structure.

Requirements

Header winsock2.h
Library Ws2.lib
Windows Embedded CE Windows CE .NET 4.0 and later
Windows Mobile Windows Mobile Version 5.0 and later

See Also

Reference

Bluetooth Application Development Functions
BTHNS_INQUIRYBLOB
BTHNS_RESTRICTIONBLOB
WSALookupServiceEnd (Bluetooth)
WSALookupServiceNext (Bluetooth)
WSAQUERYSET (Bluetooth)