DhcpUndoRequestParams function (dhcpcsdk.h)
The DhcpUndoRequestParams function removes persistent requests previously made with a DhcpRequestParams function call.
Syntax
DWORD DhcpUndoRequestParams(
[in] DWORD Flags,
[in] LPVOID Reserved,
[in] LPWSTR AdapterName,
[in] LPWSTR RequestIdStr
);
Parameters
[in] Flags
Reserved. Must be zero.
[in] Reserved
Reserved for future use. Must be set to NULL.
[in] AdapterName
GUID of the adapter for which information is no longer required. Must be under 256 characters.
[in] RequestIdStr
Application identifier (ID) originally used to make a persistent request. This string must match the RequestIdStr parameter used in the DhcpRequestParams function call that obtained the corresponding persistent request. Note that this must match the previous application identifier (ID) used, and must be a printable string with no special characters (commas, backslashes, colons, or other illegal characters may not be used).
Return value
Returns ERROR_SUCCESS upon successful completion. Otherwise, returns a Windows error code.
Remarks
Persistent requests are typically made by the setup or installer process associated with the application. When appropriate, the setup or installer process would likely make the DhcpUndoRequestParams function call to cancel its associated persistent request.
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 |