WsFreeReader

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

void WsFreeReader(
    WS_XML_READER* reader
);

<DllImport("webservices.dll", ExactSpelling:=True)>
Public Shared Sub WsFreeReader(
    ByRef reader As IntPtr   ' WS_XML_READER*
)
End Sub

' reader : WS_XML_READER*
Declare PtrSafe Sub WsFreeReader Lib "webservices" ( _
    ByRef reader As LongPtr)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

WsFreeReader = ctypes.windll.webservices.WsFreeReader
WsFreeReader.restype = None
WsFreeReader.argtypes = [
    ctypes.c_void_p,  # reader : WS_XML_READER*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('webservices.dll')
WsFreeReader = Fiddle::Function.new(
  lib['WsFreeReader'],
  [
    Fiddle::TYPE_VOIDP,  # reader : WS_XML_READER*
  ],
  Fiddle::TYPE_VOID)

#[link(name = "webservices")]
extern "system" {
    fn WsFreeReader(
        reader: *mut isize  // WS_XML_READER*
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("webservices.dll")]
public static extern void WsFreeReader(ref IntPtr reader);
"@
$api = Add-Type -MemberDefinition $sig -Name 'webservices_WsFreeReader' -Namespace Win32 -PassThru
# $api::WsFreeReader(reader)

#uselib "webservices.dll"
#func global WsFreeReader "WsFreeReader" sptr
; WsFreeReader reader
; reader : WS_XML_READER* -> "sptr"

#uselib "webservices.dll"
#func global WsFreeReader "WsFreeReader" int
; WsFreeReader reader
; reader : WS_XML_READER* -> "int"

; void WsFreeReader(WS_XML_READER* reader)
#uselib "webservices.dll"
#func global WsFreeReader "WsFreeReader" int
; WsFreeReader reader
; reader : WS_XML_READER* -> "int"

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

var (
	webservices = windows.NewLazySystemDLL("webservices.dll")
	procWsFreeReader = webservices.NewProc("WsFreeReader")
)

// reader (WS_XML_READER*)
r1, _, err := procWsFreeReader.Call(
	uintptr(reader),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure WsFreeReader(
  reader: Pointer   // WS_XML_READER*
); stdcall;
  external 'webservices.dll' name 'WsFreeReader';

result := DllCall("webservices\WsFreeReader"
    , "Ptr", reader   ; WS_XML_READER*
    , "Int")   ; return: void

●WsFreeReader(reader) = DLL("webservices.dll", "int WsFreeReader(void*)")
# 呼び出し: WsFreeReader(reader)
# reader : WS_XML_READER* -> "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)。