SnmpMgrStrToOid

// mgmtapi.dll
#include <windows.h>

BOOL SnmpMgrStrToOid(
    LPSTR string,   // optional
    AsnObjectIdentifier* oid
);

<DllImport("mgmtapi.dll", ExactSpelling:=True)>
Public Shared Function SnmpMgrStrToOid(
    <MarshalAs(UnmanagedType.LPStr)> [string] As String,   ' LPSTR optional
    oid As IntPtr   ' AsnObjectIdentifier* in/out
) As Boolean
End Function

' string : LPSTR optional
' oid : AsnObjectIdentifier* in/out
Declare PtrSafe Function SnmpMgrStrToOid Lib "mgmtapi" ( _
    ByVal string As String, _
    ByVal oid As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

SnmpMgrStrToOid = ctypes.windll.mgmtapi.SnmpMgrStrToOid
SnmpMgrStrToOid.restype = wintypes.BOOL
SnmpMgrStrToOid.argtypes = [
    wintypes.LPCSTR,  # string : LPSTR optional
    ctypes.c_void_p,  # oid : AsnObjectIdentifier* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('mgmtapi.dll')
SnmpMgrStrToOid = Fiddle::Function.new(
  lib['SnmpMgrStrToOid'],
  [
    Fiddle::TYPE_VOIDP,  # string : LPSTR optional
    Fiddle::TYPE_VOIDP,  # oid : AsnObjectIdentifier* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mgmtapi")]
extern "system" {
    fn SnmpMgrStrToOid(
        string: *mut u8,  // LPSTR optional
        oid: *mut AsnObjectIdentifier  // AsnObjectIdentifier* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("mgmtapi.dll")]
public static extern bool SnmpMgrStrToOid([MarshalAs(UnmanagedType.LPStr)] string string, IntPtr oid);
"@
$api = Add-Type -MemberDefinition $sig -Name 'mgmtapi_SnmpMgrStrToOid' -Namespace Win32 -PassThru
# $api::SnmpMgrStrToOid(string, oid)

#uselib "mgmtapi.dll"
#func global SnmpMgrStrToOid "SnmpMgrStrToOid" sptr, sptr
; SnmpMgrStrToOid string, varptr(oid)   ; 戻り値は stat
; string : LPSTR optional -> "sptr"
; oid : AsnObjectIdentifier* in/out -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

#uselib "mgmtapi.dll"
#cfunc global SnmpMgrStrToOid "SnmpMgrStrToOid" str, var
; res = SnmpMgrStrToOid(string, oid)
; string : LPSTR optional -> "str"
; oid : AsnObjectIdentifier* in/out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; BOOL SnmpMgrStrToOid(LPSTR string, AsnObjectIdentifier* oid)
#uselib "mgmtapi.dll"
#cfunc global SnmpMgrStrToOid "SnmpMgrStrToOid" str, var
; res = SnmpMgrStrToOid(string, oid)
; string : LPSTR optional -> "str"
; oid : AsnObjectIdentifier* in/out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	mgmtapi = windows.NewLazySystemDLL("mgmtapi.dll")
	procSnmpMgrStrToOid = mgmtapi.NewProc("SnmpMgrStrToOid")
)

// string (LPSTR optional), oid (AsnObjectIdentifier* in/out)
r1, _, err := procSnmpMgrStrToOid.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(string))),
	uintptr(oid),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SnmpMgrStrToOid(
  string: PAnsiChar;   // LPSTR optional
  oid: Pointer   // AsnObjectIdentifier* in/out
): BOOL; stdcall;
  external 'mgmtapi.dll' name 'SnmpMgrStrToOid';

result := DllCall("mgmtapi\SnmpMgrStrToOid"
    , "AStr", string   ; LPSTR optional
    , "Ptr", oid   ; AsnObjectIdentifier* in/out
    , "Int")   ; return: BOOL

●SnmpMgrStrToOid(string, oid) = DLL("mgmtapi.dll", "bool SnmpMgrStrToOid(char*, void*)")
# 呼び出し: SnmpMgrStrToOid(string, oid)
# string : LPSTR optional -> "char*"
# oid : AsnObjectIdentifier* in/out -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。