WsAddErrorString

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

HRESULT WsAddErrorString(
    WS_ERROR* error,
    const WS_STRING* string
);

<DllImport("webservices.dll", ExactSpelling:=True)>
Public Shared Function WsAddErrorString(
    ByRef [error] As IntPtr,   ' WS_ERROR*
    [string] As IntPtr   ' WS_STRING*
) As Integer
End Function

' error : WS_ERROR*
' string : WS_STRING*
Declare PtrSafe Function WsAddErrorString Lib "webservices" ( _
    ByRef error As LongPtr, _
    ByVal string 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

WsAddErrorString = ctypes.windll.webservices.WsAddErrorString
WsAddErrorString.restype = ctypes.c_int
WsAddErrorString.argtypes = [
    ctypes.c_void_p,  # error : WS_ERROR*
    ctypes.c_void_p,  # string : WS_STRING*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('webservices.dll')
WsAddErrorString = Fiddle::Function.new(
  lib['WsAddErrorString'],
  [
    Fiddle::TYPE_VOIDP,  # error : WS_ERROR*
    Fiddle::TYPE_VOIDP,  # string : WS_STRING*
  ],
  Fiddle::TYPE_INT)

#[link(name = "webservices")]
extern "system" {
    fn WsAddErrorString(
        error: *mut isize,  // WS_ERROR*
        string: *const WS_STRING  // WS_STRING*
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("webservices.dll")]
public static extern int WsAddErrorString(ref IntPtr error, IntPtr string);
"@
$api = Add-Type -MemberDefinition $sig -Name 'webservices_WsAddErrorString' -Namespace Win32 -PassThru
# $api::WsAddErrorString(error, string)

#uselib "webservices.dll"
#func global WsAddErrorString "WsAddErrorString" sptr, sptr
; WsAddErrorString error, varptr(string)   ; 戻り値は stat
; error : WS_ERROR* -> "sptr"
; string : WS_STRING* -> "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 "webservices.dll"
#cfunc global WsAddErrorString "WsAddErrorString" int, var
; res = WsAddErrorString(error, string)
; error : WS_ERROR* -> "int"
; string : WS_STRING* -> "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。

; HRESULT WsAddErrorString(WS_ERROR* error, WS_STRING* string)
#uselib "webservices.dll"
#cfunc global WsAddErrorString "WsAddErrorString" int, var
; res = WsAddErrorString(error, string)
; error : WS_ERROR* -> "int"
; string : WS_STRING* -> "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 (
	webservices = windows.NewLazySystemDLL("webservices.dll")
	procWsAddErrorString = webservices.NewProc("WsAddErrorString")
)

// error (WS_ERROR*), string (WS_STRING*)
r1, _, err := procWsAddErrorString.Call(
	uintptr(error),
	uintptr(string),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function WsAddErrorString(
  error: Pointer;   // WS_ERROR*
  string: Pointer   // WS_STRING*
): Integer; stdcall;
  external 'webservices.dll' name 'WsAddErrorString';

result := DllCall("webservices\WsAddErrorString"
    , "Ptr", error   ; WS_ERROR*
    , "Ptr", string   ; WS_STRING*
    , "Int")   ; return: HRESULT

●WsAddErrorString(error, string) = DLL("webservices.dll", "int WsAddErrorString(void*, void*)")
# 呼び出し: WsAddErrorString(error, string)
# error : WS_ERROR* -> "void*"
# string : WS_STRING* -> "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)。