SnmpCountVbl function (winsnmp.h)

Article
02/22/2024

[SNMP is available for use in the operating systems specified in the Requirements section. It may be altered or unavailable in subsequent versions. Instead, use Windows Remote Management, which is the Microsoft implementation of WS-Man.]

A WinSNMP application calls the WinSNMP SnmpCountVbl function to enumerate the variable binding entries in the specified variable bindings list.

Syntax

SNMPAPI_STATUS SNMPAPI_CALL SnmpCountVbl(
  [in] HSNMP_VBL vbl
);

Parameters

[in] vbl

Handle to the variable bindings list to enumerate.

Return value

If the function succeeds, the return value is the count of variable binding entries in the variable bindings list.

If the function fails, the return value is SNMPAPI_FAILURE. To get extended error information, call SnmpGetLastError specifying a NULL value in its session parameter. The SnmpGetLastError function can return one of the following errors.

Return code	Description
SNMPAPI_NOT_INITIALIZED	The SnmpStartup function did not complete successfully.
SNMPAPI_ALLOC_ERROR	An error occurred during memory allocation.
SNMPAPI_NOOP	The variable bindings list does not contain any variable binding entries at this time.
SNMPAPI_VBL_INVALID	The vbl parameter is invalid.
SNMPAPI_OTHER_ERROR	An unknown or undefined error occurred.

Remarks

The SnmpCountVbl function returns an unsigned integer value that is the maximum value the WinSNMP application can specify for the index parameter in the SnmpGetVb, SnmpSetVb, and SnmpDeleteVb functions.

Requirements

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Target Platform	Windows
Header	winsnmp.h
Library	Wsnmp32.lib
DLL	Wsnmp32.dll