DhcpModifyClass function (dhcpsapi.h)

The DhcpModifyClass function modifies a DHCP class defined on the server.

Syntax

DWORD DhcpModifyClass(
  [in] LPWSTR            ServerIpAddress,
  [in] DWORD             ReservedMustBeZero,
  [in] LPDHCP_CLASS_INFO ClassInfo
);

[in] ServerIpAddress

Unicode string that specifies the IP address or hostname of the DHCP server.

[in] ReservedMustBeZero

Reserved. This value must be set to 0.

[in] ClassInfo

Pointer to a DHCP_CLASS_INFO structure that contains the new information for the class.

This function returns ERROR_SUCCESS upon a successful call. Otherwise, it returns one of the DHCP Server Management API Error Codes.

Return code	Description
ERROR_ACCESS_DENIED	This call was performed by a client who is not a member of the "DHCP Administrators" security group.
ERROR_INVALID_PARAMETER	The DHCP_CLASS_INFO structure provided in ClassInfo has null or invalid values for the ClassName or ClassData member (or both).
ERROR_DHCP_CLASS_NOT_FOUND	A class name could not be found that matches the provided information.
ERROR_DHCP_JET_ERROR	An error occurred while accessing the DHCP server's database.
ERROR_DHCP_CLASS_ALREADY_EXISTS	The new class name is currently in use, or the new class information is currently in use.

Requirement	Value
Minimum supported client	None supported
Minimum supported server	Windows Server 2008 R2 [desktop apps only]
Target Platform	Windows
Header	dhcpsapi.h
Library	Dhcpsapi.lib
DLL	Dhcpsapi.dll