DhcpDeRegisterParamChange function (dhcpcsdk.h)

Article
10/13/2021

The DhcpDeRegisterParamChange function releases resources associated with previously registered event notifications, and closes the associated event handle.

Syntax

DWORD DhcpDeRegisterParamChange(
  [in] DWORD  Flags,
  [in] LPVOID Reserved,
  [in] LPVOID Event
);

Parameters

[in] Flags

Reserved. Must be set to zero.

[in] Reserved

Reserved. Must be set to NULL.

[in] Event

Must be the same value as the HANDLE variable in the DhcpRegisterParamChange function call for which the client is deregistering event notification.

Return value

Returns ERROR_SUCCESS upon successful completion. Otherwise, returns Windows error codes.

Remarks

The DhcpDeRegisterParamChange function must be made subsequent to an associated DhcpRegisterParamChange function call, and the Flags parameter and the HANDLE variable passed
in the Event parameter to DhcpDeRegisterParamChange must match corresponding Flags parameter and the HANDLE variable of the previous and associated DhcpRegisterParamChange function call.

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	dhcpcsdk.h
Library	Dhcpcsvc.lib
DLL	Dhcpcsvc.dll