DdeImpersonateClient

// USER32.dll
#include <windows.h>

BOOL DdeImpersonateClient(
    HCONV hConv
);

<DllImport("USER32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function DdeImpersonateClient(
    hConv As IntPtr   ' HCONV
) As Boolean
End Function

' hConv : HCONV
Declare PtrSafe Function DdeImpersonateClient Lib "user32" ( _
    ByVal hConv 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

DdeImpersonateClient = ctypes.windll.user32.DdeImpersonateClient
DdeImpersonateClient.restype = wintypes.BOOL
DdeImpersonateClient.argtypes = [
    wintypes.HANDLE,  # hConv : HCONV
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
DdeImpersonateClient = Fiddle::Function.new(
  lib['DdeImpersonateClient'],
  [
    Fiddle::TYPE_VOIDP,  # hConv : HCONV
  ],
  Fiddle::TYPE_INT)

#[link(name = "user32")]
extern "system" {
    fn DdeImpersonateClient(
        hConv: *mut core::ffi::c_void  // HCONV
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("USER32.dll", SetLastError = true)]
public static extern bool DdeImpersonateClient(IntPtr hConv);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_DdeImpersonateClient' -Namespace Win32 -PassThru
# $api::DdeImpersonateClient(hConv)

#uselib "USER32.dll"
#func global DdeImpersonateClient "DdeImpersonateClient" sptr
; DdeImpersonateClient hConv   ; 戻り値は stat
; hConv : HCONV -> "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 "USER32.dll"
#cfunc global DdeImpersonateClient "DdeImpersonateClient" sptr
; res = DdeImpersonateClient(hConv)
; hConv : HCONV -> "sptr"

; BOOL DdeImpersonateClient(HCONV hConv)
#uselib "USER32.dll"
#cfunc global DdeImpersonateClient "DdeImpersonateClient" intptr
; res = DdeImpersonateClient(hConv)
; hConv : HCONV -> "intptr"

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

var (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procDdeImpersonateClient = user32.NewProc("DdeImpersonateClient")
)

// hConv (HCONV)
r1, _, err := procDdeImpersonateClient.Call(
	uintptr(hConv),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function DdeImpersonateClient(
  hConv: THandle   // HCONV
): BOOL; stdcall;
  external 'USER32.dll' name 'DdeImpersonateClient';

result := DllCall("USER32\DdeImpersonateClient"
    , "Ptr", hConv   ; HCONV
    , "Int")   ; return: BOOL

●DdeImpersonateClient(hConv) = DLL("USER32.dll", "bool DdeImpersonateClient(void*)")
# 呼び出し: DdeImpersonateClient(hConv)
# hConv : HCONV -> "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)。