CoImpersonateClient

// OLE32.dll
#include <windows.h>

HRESULT CoImpersonateClient(void);

<DllImport("OLE32.dll", ExactSpelling:=True)>
Public Shared Function CoImpersonateClient() As Integer
End Function

Declare PtrSafe Function CoImpersonateClient Lib "ole32" () As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

CoImpersonateClient = ctypes.windll.ole32.CoImpersonateClient
CoImpersonateClient.restype = ctypes.c_int
CoImpersonateClient.argtypes = []

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLE32.dll')
CoImpersonateClient = Fiddle::Function.new(
  lib['CoImpersonateClient'],
  [],
  Fiddle::TYPE_INT)

#[link(name = "ole32")]
extern "system" {
    fn CoImpersonateClient() -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLE32.dll")]
public static extern int CoImpersonateClient();
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLE32_CoImpersonateClient' -Namespace Win32 -PassThru
# $api::CoImpersonateClient()

#uselib "OLE32.dll"
#func global CoImpersonateClient "CoImpersonateClient"
; CoImpersonateClient   ; 戻り値は stat
; ※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 "OLE32.dll"
#cfunc global CoImpersonateClient "CoImpersonateClient"
; res = CoImpersonateClient()

; HRESULT CoImpersonateClient()
#uselib "OLE32.dll"
#cfunc global CoImpersonateClient "CoImpersonateClient"
; res = CoImpersonateClient()

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

var (
	ole32 = windows.NewLazySystemDLL("OLE32.dll")
	procCoImpersonateClient = ole32.NewProc("CoImpersonateClient")
)

r1, _, err := procCoImpersonateClient.Call()
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function CoImpersonateClient: Integer; stdcall;
  external 'OLE32.dll' name 'CoImpersonateClient';

result := DllCall("OLE32\CoImpersonateClient", "Int")

●CoImpersonateClient() = DLL("OLE32.dll", "int CoImpersonateClient()")
# 呼び出し: CoImpersonateClient()
# 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)。