MesInqProcEncodingId

// RPCRT4.dll
#include <windows.h>

RPC_STATUS MesInqProcEncodingId(
    void* Handle,
    RPC_SYNTAX_IDENTIFIER* pInterfaceId,
    DWORD* pProcNum
);

<DllImport("RPCRT4.dll", ExactSpelling:=True)>
Public Shared Function MesInqProcEncodingId(
    Handle As IntPtr,   ' void* in/out
    pInterfaceId As IntPtr,   ' RPC_SYNTAX_IDENTIFIER* in/out
    ByRef pProcNum As UInteger   ' DWORD* in/out
) As Integer
End Function

' Handle : void* in/out
' pInterfaceId : RPC_SYNTAX_IDENTIFIER* in/out
' pProcNum : DWORD* in/out
Declare PtrSafe Function MesInqProcEncodingId Lib "rpcrt4" ( _
    ByVal Handle As LongPtr, _
    ByVal pInterfaceId As LongPtr, _
    ByRef pProcNum As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

MesInqProcEncodingId = ctypes.windll.rpcrt4.MesInqProcEncodingId
MesInqProcEncodingId.restype = ctypes.c_int
MesInqProcEncodingId.argtypes = [
    ctypes.POINTER(None),  # Handle : void* in/out
    ctypes.c_void_p,  # pInterfaceId : RPC_SYNTAX_IDENTIFIER* in/out
    ctypes.POINTER(wintypes.DWORD),  # pProcNum : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('RPCRT4.dll')
MesInqProcEncodingId = Fiddle::Function.new(
  lib['MesInqProcEncodingId'],
  [
    Fiddle::TYPE_VOIDP,  # Handle : void* in/out
    Fiddle::TYPE_VOIDP,  # pInterfaceId : RPC_SYNTAX_IDENTIFIER* in/out
    Fiddle::TYPE_VOIDP,  # pProcNum : DWORD* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "rpcrt4")]
extern "system" {
    fn MesInqProcEncodingId(
        Handle: *mut (),  // void* in/out
        pInterfaceId: *mut RPC_SYNTAX_IDENTIFIER,  // RPC_SYNTAX_IDENTIFIER* in/out
        pProcNum: *mut u32  // DWORD* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("RPCRT4.dll")]
public static extern int MesInqProcEncodingId(IntPtr Handle, IntPtr pInterfaceId, ref uint pProcNum);
"@
$api = Add-Type -MemberDefinition $sig -Name 'RPCRT4_MesInqProcEncodingId' -Namespace Win32 -PassThru
# $api::MesInqProcEncodingId(Handle, pInterfaceId, pProcNum)

#uselib "RPCRT4.dll"
#func global MesInqProcEncodingId "MesInqProcEncodingId" sptr, sptr, sptr
; MesInqProcEncodingId Handle, varptr(pInterfaceId), varptr(pProcNum)   ; 戻り値は stat
; Handle : void* in/out -> "sptr"
; pInterfaceId : RPC_SYNTAX_IDENTIFIER* in/out -> "sptr"
; pProcNum : DWORD* 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 "RPCRT4.dll"
#cfunc global MesInqProcEncodingId "MesInqProcEncodingId" sptr, var, var
; res = MesInqProcEncodingId(Handle, pInterfaceId, pProcNum)
; Handle : void* in/out -> "sptr"
; pInterfaceId : RPC_SYNTAX_IDENTIFIER* in/out -> "var"
; pProcNum : DWORD* 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。

; RPC_STATUS MesInqProcEncodingId(void* Handle, RPC_SYNTAX_IDENTIFIER* pInterfaceId, DWORD* pProcNum)
#uselib "RPCRT4.dll"
#cfunc global MesInqProcEncodingId "MesInqProcEncodingId" intptr, var, var
; res = MesInqProcEncodingId(Handle, pInterfaceId, pProcNum)
; Handle : void* in/out -> "intptr"
; pInterfaceId : RPC_SYNTAX_IDENTIFIER* in/out -> "var"
; pProcNum : DWORD* 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 (
	rpcrt4 = windows.NewLazySystemDLL("RPCRT4.dll")
	procMesInqProcEncodingId = rpcrt4.NewProc("MesInqProcEncodingId")
)

// Handle (void* in/out), pInterfaceId (RPC_SYNTAX_IDENTIFIER* in/out), pProcNum (DWORD* in/out)
r1, _, err := procMesInqProcEncodingId.Call(
	uintptr(Handle),
	uintptr(pInterfaceId),
	uintptr(pProcNum),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // RPC_STATUS

function MesInqProcEncodingId(
  Handle: Pointer;   // void* in/out
  pInterfaceId: Pointer;   // RPC_SYNTAX_IDENTIFIER* in/out
  pProcNum: Pointer   // DWORD* in/out
): Integer; stdcall;
  external 'RPCRT4.dll' name 'MesInqProcEncodingId';

result := DllCall("RPCRT4\MesInqProcEncodingId"
    , "Ptr", Handle   ; void* in/out
    , "Ptr", pInterfaceId   ; RPC_SYNTAX_IDENTIFIER* in/out
    , "Ptr", pProcNum   ; DWORD* in/out
    , "Int")   ; return: RPC_STATUS

●MesInqProcEncodingId(Handle, pInterfaceId, pProcNum) = DLL("RPCRT4.dll", "int MesInqProcEncodingId(void*, void*, void*)")
# 呼び出し: MesInqProcEncodingId(Handle, pInterfaceId, pProcNum)
# Handle : void* in/out -> "void*"
# pInterfaceId : RPC_SYNTAX_IDENTIFIER* in/out -> "void*"
# pProcNum : DWORD* 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)。