DRMDeconstructCertificateChain

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

HRESULT DRMDeconstructCertificateChain(
    LPWSTR wszChain,
    DWORD iWhich,
    DWORD* pcCert,
    LPWSTR wszCert   // optional
);

<DllImport("msdrm.dll", ExactSpelling:=True)>
Public Shared Function DRMDeconstructCertificateChain(
    <MarshalAs(UnmanagedType.LPWStr)> wszChain As String,   ' LPWSTR
    iWhich As UInteger,   ' DWORD
    ByRef pcCert As UInteger,   ' DWORD* in/out
    <MarshalAs(UnmanagedType.LPWStr)> wszCert As System.Text.StringBuilder   ' LPWSTR optional, out
) As Integer
End Function

' wszChain : LPWSTR
' iWhich : DWORD
' pcCert : DWORD* in/out
' wszCert : LPWSTR optional, out
Declare PtrSafe Function DRMDeconstructCertificateChain Lib "msdrm" ( _
    ByVal wszChain As LongPtr, _
    ByVal iWhich As Long, _
    ByRef pcCert As Long, _
    ByVal wszCert 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

DRMDeconstructCertificateChain = ctypes.windll.msdrm.DRMDeconstructCertificateChain
DRMDeconstructCertificateChain.restype = ctypes.c_int
DRMDeconstructCertificateChain.argtypes = [
    wintypes.LPCWSTR,  # wszChain : LPWSTR
    wintypes.DWORD,  # iWhich : DWORD
    ctypes.POINTER(wintypes.DWORD),  # pcCert : DWORD* in/out
    wintypes.LPWSTR,  # wszCert : LPWSTR optional, out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('msdrm.dll')
DRMDeconstructCertificateChain = Fiddle::Function.new(
  lib['DRMDeconstructCertificateChain'],
  [
    Fiddle::TYPE_VOIDP,  # wszChain : LPWSTR
    -Fiddle::TYPE_INT,  # iWhich : DWORD
    Fiddle::TYPE_VOIDP,  # pcCert : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # wszCert : LPWSTR optional, out
  ],
  Fiddle::TYPE_INT)

#[link(name = "msdrm")]
extern "system" {
    fn DRMDeconstructCertificateChain(
        wszChain: *mut u16,  // LPWSTR
        iWhich: u32,  // DWORD
        pcCert: *mut u32,  // DWORD* in/out
        wszCert: *mut u16  // LPWSTR optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("msdrm.dll")]
public static extern int DRMDeconstructCertificateChain([MarshalAs(UnmanagedType.LPWStr)] string wszChain, uint iWhich, ref uint pcCert, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder wszCert);
"@
$api = Add-Type -MemberDefinition $sig -Name 'msdrm_DRMDeconstructCertificateChain' -Namespace Win32 -PassThru
# $api::DRMDeconstructCertificateChain(wszChain, iWhich, pcCert, wszCert)

#uselib "msdrm.dll"
#func global DRMDeconstructCertificateChain "DRMDeconstructCertificateChain" sptr, sptr, sptr, sptr
; DRMDeconstructCertificateChain wszChain, iWhich, varptr(pcCert), varptr(wszCert)   ; 戻り値は stat
; wszChain : LPWSTR -> "sptr"
; iWhich : DWORD -> "sptr"
; pcCert : DWORD* in/out -> "sptr"
; wszCert : LPWSTR optional, 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 "msdrm.dll"
#cfunc global DRMDeconstructCertificateChain "DRMDeconstructCertificateChain" wstr, int, var, var
; res = DRMDeconstructCertificateChain(wszChain, iWhich, pcCert, wszCert)
; wszChain : LPWSTR -> "wstr"
; iWhich : DWORD -> "int"
; pcCert : DWORD* in/out -> "var"
; wszCert : LPWSTR optional, 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 DRMDeconstructCertificateChain(LPWSTR wszChain, DWORD iWhich, DWORD* pcCert, LPWSTR wszCert)
#uselib "msdrm.dll"
#cfunc global DRMDeconstructCertificateChain "DRMDeconstructCertificateChain" wstr, int, var, var
; res = DRMDeconstructCertificateChain(wszChain, iWhich, pcCert, wszCert)
; wszChain : LPWSTR -> "wstr"
; iWhich : DWORD -> "int"
; pcCert : DWORD* in/out -> "var"
; wszCert : LPWSTR optional, 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 (
	msdrm = windows.NewLazySystemDLL("msdrm.dll")
	procDRMDeconstructCertificateChain = msdrm.NewProc("DRMDeconstructCertificateChain")
)

// wszChain (LPWSTR), iWhich (DWORD), pcCert (DWORD* in/out), wszCert (LPWSTR optional, out)
r1, _, err := procDRMDeconstructCertificateChain.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(wszChain))),
	uintptr(iWhich),
	uintptr(pcCert),
	uintptr(wszCert),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function DRMDeconstructCertificateChain(
  wszChain: PWideChar;   // LPWSTR
  iWhich: DWORD;   // DWORD
  pcCert: Pointer;   // DWORD* in/out
  wszCert: PWideChar   // LPWSTR optional, out
): Integer; stdcall;
  external 'msdrm.dll' name 'DRMDeconstructCertificateChain';

result := DllCall("msdrm\DRMDeconstructCertificateChain"
    , "WStr", wszChain   ; LPWSTR
    , "UInt", iWhich   ; DWORD
    , "Ptr", pcCert   ; DWORD* in/out
    , "Ptr", wszCert   ; LPWSTR optional, out
    , "Int")   ; return: HRESULT

●DRMDeconstructCertificateChain(wszChain, iWhich, pcCert, wszCert) = DLL("msdrm.dll", "int DRMDeconstructCertificateChain(char*, dword, void*, char*)")
# 呼び出し: DRMDeconstructCertificateChain(wszChain, iWhich, pcCert, wszCert)
# wszChain : LPWSTR -> "char*"
# iWhich : DWORD -> "dword"
# pcCert : DWORD* in/out -> "void*"
# wszCert : LPWSTR optional, out -> "char*"
# 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)。