SnmpUtilIdsToA function

[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.]

The SnmpUtilIdsToA function converts an object identifier (OID) to a null-terminated string. This function is an element of the SNMP Utility API.


LPSTR SnmpUtilIdsToA(
  _In_ UINT *Ids,
  _In_ UINT IdLength


Ids [in]

Pointer to an array of unsigned integers. The array contains the sequence of numbers that the OID contains. The IdLength parameter specifies the array's length.

For more information, see the following Return Values and Remarks sections.

IdLength [in]

Specifies the number of elements in the array pointed to by the Ids parameter.

Return value

The function returns a null-terminated string that contains the string representation of the array of numbers pointed to by the Ids parameter. The string contains a sequence of numbers separated by periods ('.'); for example,

If the Ids parameter is null, or if the IdLength parameter specifies zero, the function returns the string "<null oid>".

The maximum length of the returned string is 256 characters. If the string's length exceeds 256 characters, the string is truncated and terminated with a sequence of three periods ('...').


The SnmpUtilIdsToA function can assist with the debugging of SNMP applications.

Note that the following memory restrictions apply when you call SnmpUtilIdsToA:

  • The Ids parameter must point to a valid memory block of at least IdLength integers, or the function call results in an access violation exception.
  • The string returned by SnmpUtilIdsToA resides in memory that the SNMP Utility API allocates. The application should not make any assumptions about the memory allocation. The data is guaranteed to be valid until you call SnmpUtilIdsToA again, so before calling the function again you should copy the data to another location.


Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]







See also

Simple Network Management Protocol (SNMP) Overview
SNMP Functions



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