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Quick Info
Windows NT
| Yes
| Win95
| No
| Win32s
| No
| Import Library
| -
| Header File
| nspapi.h
| Unicode
| WinNT
| Platform Notes
| None
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SERVICE_TYPE_VALUE_ABS
The SERVICE_TYPE_VALUE_ABS structure contains information about a network-service type value. This
information may be specific to a name space.
typedef struct _SERVICE_TYPE_VALUE_ABS {
DWORD dwNameSpace;
DWORD dwValueType;
DWORD dwValueSize;
LPTSTR lpValueName;
PVOID lpValue;
} SERVICE_TYPE_VALUE_ABS
Members
dwNameSpace
Specifies the name space, or a set of default name spaces, for which the
network service type value is intended. Name-space providers will look only at
values intended for their name space.
Use one of the following constants to specify a name space:
Value
| Name Space
| NS_DEFAULT
| A set of default name spaces. The function queries each name space within this
set. The set of default name spaces typically includes all the name spaces
installed on the system. System administrators, however, can exclude particular
name spaces 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 NT systems register their computer
names with NetBIOS. This name space 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 name space 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
Specifies the type of the value data. You can specify one of the following
types:
Value
| Meaning
| 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
Specifies the size, in bytes, of the value data. In the case of REG_SZ and
REG_MULTI_SZ string data, the terminating characters are counted as part of the
size.
lpValueName
Points to a zero-terminated string that is the name of the value. This name is
specific to a name space.
Several commonly used value name strings are associated with defined
constants. These name strings include the following:
Constant
| Name String
| SERVICE_TYPE_VALUE_SAPID
| "SapId"
| SERVICE_TYPE_VALUE_CONN
| "ConnectionOriented"
| SERVICE_TYPE_VALUE_TCPPORT
| "TcpPort"
| SERVICE_TYPE_VALUE_UDPPORT
| "UdpPort"
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lpValue
Points to the value data.
Remarks
When you use the SetService function to add a network service type to a name space, 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.
See Also
SetService, SERVICE_INFO, SERVICE_TYPE_INFO_ABS
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