HrGetOneProp

// MAPI32.dll
#include <windows.h>

HRESULT HrGetOneProp(
    IMAPIProp* lpMapiProp,
    DWORD ulPropTag,
    SPropValue** lppProp
);

<DllImport("MAPI32.dll", ExactSpelling:=True)>
Public Shared Function HrGetOneProp(
    lpMapiProp As IntPtr,   ' IMAPIProp*
    ulPropTag As UInteger,   ' DWORD
    lppProp As IntPtr   ' SPropValue** in/out
) As Integer
End Function

' lpMapiProp : IMAPIProp*
' ulPropTag : DWORD
' lppProp : SPropValue** in/out
Declare PtrSafe Function HrGetOneProp Lib "mapi32" ( _
    ByVal lpMapiProp As LongPtr, _
    ByVal ulPropTag As Long, _
    ByVal lppProp 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

HrGetOneProp = ctypes.windll.mapi32.HrGetOneProp
HrGetOneProp.restype = ctypes.c_int
HrGetOneProp.argtypes = [
    ctypes.c_void_p,  # lpMapiProp : IMAPIProp*
    wintypes.DWORD,  # ulPropTag : DWORD
    ctypes.c_void_p,  # lppProp : SPropValue** in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MAPI32.dll')
HrGetOneProp = Fiddle::Function.new(
  lib['HrGetOneProp'],
  [
    Fiddle::TYPE_VOIDP,  # lpMapiProp : IMAPIProp*
    -Fiddle::TYPE_INT,  # ulPropTag : DWORD
    Fiddle::TYPE_VOIDP,  # lppProp : SPropValue** in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mapi32")]
extern "system" {
    fn HrGetOneProp(
        lpMapiProp: *mut core::ffi::c_void,  // IMAPIProp*
        ulPropTag: u32,  // DWORD
        lppProp: *mut *mut SPropValue  // SPropValue** in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MAPI32.dll")]
public static extern int HrGetOneProp(IntPtr lpMapiProp, uint ulPropTag, IntPtr lppProp);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MAPI32_HrGetOneProp' -Namespace Win32 -PassThru
# $api::HrGetOneProp(lpMapiProp, ulPropTag, lppProp)

#uselib "MAPI32.dll"
#func global HrGetOneProp "HrGetOneProp" sptr, sptr, sptr
; HrGetOneProp lpMapiProp, ulPropTag, varptr(lppProp)   ; 戻り値は stat
; lpMapiProp : IMAPIProp* -> "sptr"
; ulPropTag : DWORD -> "sptr"
; lppProp : SPropValue** 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 "MAPI32.dll"
#cfunc global HrGetOneProp "HrGetOneProp" sptr, int, var
; res = HrGetOneProp(lpMapiProp, ulPropTag, lppProp)
; lpMapiProp : IMAPIProp* -> "sptr"
; ulPropTag : DWORD -> "int"
; lppProp : SPropValue** 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。

; HRESULT HrGetOneProp(IMAPIProp* lpMapiProp, DWORD ulPropTag, SPropValue** lppProp)
#uselib "MAPI32.dll"
#cfunc global HrGetOneProp "HrGetOneProp" intptr, int, var
; res = HrGetOneProp(lpMapiProp, ulPropTag, lppProp)
; lpMapiProp : IMAPIProp* -> "intptr"
; ulPropTag : DWORD -> "int"
; lppProp : SPropValue** 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 (
	mapi32 = windows.NewLazySystemDLL("MAPI32.dll")
	procHrGetOneProp = mapi32.NewProc("HrGetOneProp")
)

// lpMapiProp (IMAPIProp*), ulPropTag (DWORD), lppProp (SPropValue** in/out)
r1, _, err := procHrGetOneProp.Call(
	uintptr(lpMapiProp),
	uintptr(ulPropTag),
	uintptr(lppProp),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function HrGetOneProp(
  lpMapiProp: Pointer;   // IMAPIProp*
  ulPropTag: DWORD;   // DWORD
  lppProp: Pointer   // SPropValue** in/out
): Integer; stdcall;
  external 'MAPI32.dll' name 'HrGetOneProp';

result := DllCall("MAPI32\HrGetOneProp"
    , "Ptr", lpMapiProp   ; IMAPIProp*
    , "UInt", ulPropTag   ; DWORD
    , "Ptr", lppProp   ; SPropValue** in/out
    , "Int")   ; return: HRESULT

●HrGetOneProp(lpMapiProp, ulPropTag, lppProp) = DLL("MAPI32.dll", "int HrGetOneProp(void*, dword, void*)")
# 呼び出し: HrGetOneProp(lpMapiProp, ulPropTag, lppProp)
# lpMapiProp : IMAPIProp* -> "void*"
# ulPropTag : DWORD -> "dword"
# lppProp : SPropValue** 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)。