SERVICE_TYPE_VALUE_ABS Structure
The SERVICE_TYPE_VALUE_ABS structure contains information about a network-service type value. This information may be specific to a namespace.
Syntax
typedef struct _SERVICE_TYPE_VALUE_ABS {
DWORD dwNameSpace;
DWORD dwValueType;
DWORD dwValueSize;
LPTSTR lpValueName;
PVOID lpValue;
} SERVICE_TYPE_VALUE_ABS;
Mitglieder
dwNameSpace
Typ: DWORDA namespace, or a set of default namespaces, for which the network service type value is intended. Namespace providers will look only at values intended for their namespace.
Use one of the following constants to specify a namespace:
Wert Bedeutung NS_DEFAULT A set of default namespaces. The function queries each namespace within this set. The set of default namespaces typically includes all the namespaces installed on the system. System administrators, however, can exclude particular namespaces from the set. NS_DEFAULT is the value that most applications should use for dwNameSpace.
NS_DNS The Domain Name System used in the Internet for host name resolution.
NS_NETBT The NetBIOS over TCP/IP layer. All Windows operating systems register their computer names with NetBIOS. This namespace is used to convert a computer name to an IP address that uses this registration. Note that NS_NETBT may access a WINS server to perform the resolution.
NS_SAP The NetWare Service Advertising Protocol. This may access the NetWare bindery if appropriate. NS_SAP is a dynamic namespace that allows registration of services.
NS_TCPIP_HOSTS Lookup value in the <systemroot>\system32\drivers\etc\hosts file.
NS_TCPIP_LOCAL Local TCP/IP name resolution mechanisms, including comparisons against the local host name and looks up host names and IP addresses in cache of host to IP address mappings.
dwValueType
Typ: DWORDThe type of the value data. Specify one of the following types:
Wert Bedeutung REG_BINARY Binary data in any form.
REG_DWORD A 32-bit number.
REG_MULTI_SZ An array of null-terminated strings, terminated by two null characters.
REG_SZ A null-terminated string.
dwValueSize
Typ: DWORDThe size, in bytes, of the value pointed to by the lpValue member. In the case of REG_SZ and REG_MULTI_SZ string data, the terminating characters are counted as part of the size.
lpValueName
Typ: LPTSTRA pointer to a NULL-terminated string that is the name of the value. This name is specific to a namespace.
Several commonly used value name strings are associated with defined constants. These name strings include the following.
Constant Bedeutung SERVICE_TYPE_VALUE_SAPID "SapId"
SERVICE_TYPE_VALUE_CONN "ConnectionOriented"
SERVICE_TYPE_VALUE_TCPPORT "TcpPort"
SERVICE_TYPE_VALUE_UDPPORT "UdpPort"
lpValue
Typ: PVOIDA pointer to the value data.
Hinweise
When you use the SetService function to add a network service type to a namespace, a SERVICE_TYPE_INFO_ABS structure is passed as the ServiceSpecificInfo BLOB member of a SERVICE_INFO structure. Although the ServiceSpecificInfo member generally should not contain pointers, an exception is made in the case of the SERVICE_TYPE_INFO_ABS and SERVICE_TYPE_VALUE_ABS structures.
Anforderungen
Mindestens unterstützter Client |
Windows 2000 Professional |
Mindestens unterstützter Server |
Windows 2000 Server |
Header |
Nspapi.h |
Unicode- und ANSI-Namen |
SERVICE_TYPE_VALUE_ABSW (Unicode) and SERVICE_TYPE_VALUE_ABSA (ANSI) |