CryptGetMessageCertificates

// CRYPT32.dll
#include <windows.h>

HCERTSTORE CryptGetMessageCertificates(
    DWORD dwMsgAndCertEncodingType,
    HCRYPTPROV_LEGACY hCryptProv,   // optional
    DWORD dwFlags,
    const BYTE* pbSignedBlob,
    DWORD cbSignedBlob
);

<DllImport("CRYPT32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CryptGetMessageCertificates(
    dwMsgAndCertEncodingType As UInteger,   ' DWORD
    hCryptProv As UIntPtr,   ' HCRYPTPROV_LEGACY optional
    dwFlags As UInteger,   ' DWORD
    pbSignedBlob As IntPtr,   ' BYTE*
    cbSignedBlob As UInteger   ' DWORD
) As IntPtr
End Function

' dwMsgAndCertEncodingType : DWORD
' hCryptProv : HCRYPTPROV_LEGACY optional
' dwFlags : DWORD
' pbSignedBlob : BYTE*
' cbSignedBlob : DWORD
Declare PtrSafe Function CryptGetMessageCertificates Lib "crypt32" ( _
    ByVal dwMsgAndCertEncodingType As Long, _
    ByVal hCryptProv As LongPtr, _
    ByVal dwFlags As Long, _
    ByVal pbSignedBlob As LongPtr, _
    ByVal cbSignedBlob As Long) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

CryptGetMessageCertificates = ctypes.windll.crypt32.CryptGetMessageCertificates
CryptGetMessageCertificates.restype = ctypes.c_void_p
CryptGetMessageCertificates.argtypes = [
    wintypes.DWORD,  # dwMsgAndCertEncodingType : DWORD
    ctypes.c_size_t,  # hCryptProv : HCRYPTPROV_LEGACY optional
    wintypes.DWORD,  # dwFlags : DWORD
    ctypes.POINTER(ctypes.c_ubyte),  # pbSignedBlob : BYTE*
    wintypes.DWORD,  # cbSignedBlob : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CRYPT32.dll')
CryptGetMessageCertificates = Fiddle::Function.new(
  lib['CryptGetMessageCertificates'],
  [
    -Fiddle::TYPE_INT,  # dwMsgAndCertEncodingType : DWORD
    Fiddle::TYPE_UINTPTR_T,  # hCryptProv : HCRYPTPROV_LEGACY optional
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
    Fiddle::TYPE_VOIDP,  # pbSignedBlob : BYTE*
    -Fiddle::TYPE_INT,  # cbSignedBlob : DWORD
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "crypt32")]
extern "system" {
    fn CryptGetMessageCertificates(
        dwMsgAndCertEncodingType: u32,  // DWORD
        hCryptProv: usize,  // HCRYPTPROV_LEGACY optional
        dwFlags: u32,  // DWORD
        pbSignedBlob: *const u8,  // BYTE*
        cbSignedBlob: u32  // DWORD
    ) -> *mut core::ffi::c_void;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("CRYPT32.dll", SetLastError = true)]
public static extern IntPtr CryptGetMessageCertificates(uint dwMsgAndCertEncodingType, UIntPtr hCryptProv, uint dwFlags, IntPtr pbSignedBlob, uint cbSignedBlob);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CRYPT32_CryptGetMessageCertificates' -Namespace Win32 -PassThru
# $api::CryptGetMessageCertificates(dwMsgAndCertEncodingType, hCryptProv, dwFlags, pbSignedBlob, cbSignedBlob)

#uselib "CRYPT32.dll"
#func global CryptGetMessageCertificates "CryptGetMessageCertificates" sptr, sptr, sptr, sptr, sptr
; CryptGetMessageCertificates dwMsgAndCertEncodingType, hCryptProv, dwFlags, varptr(pbSignedBlob), cbSignedBlob   ; 戻り値は stat
; dwMsgAndCertEncodingType : DWORD -> "sptr"
; hCryptProv : HCRYPTPROV_LEGACY optional -> "sptr"
; dwFlags : DWORD -> "sptr"
; pbSignedBlob : BYTE* -> "sptr"
; cbSignedBlob : DWORD -> "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 "CRYPT32.dll"
#cfunc global CryptGetMessageCertificates "CryptGetMessageCertificates" int, sptr, int, var, int
; res = CryptGetMessageCertificates(dwMsgAndCertEncodingType, hCryptProv, dwFlags, pbSignedBlob, cbSignedBlob)
; dwMsgAndCertEncodingType : DWORD -> "int"
; hCryptProv : HCRYPTPROV_LEGACY optional -> "sptr"
; dwFlags : DWORD -> "int"
; pbSignedBlob : BYTE* -> "var"
; cbSignedBlob : DWORD -> "int"
; ※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。

; HCERTSTORE CryptGetMessageCertificates(DWORD dwMsgAndCertEncodingType, HCRYPTPROV_LEGACY hCryptProv, DWORD dwFlags, BYTE* pbSignedBlob, DWORD cbSignedBlob)
#uselib "CRYPT32.dll"
#cfunc global CryptGetMessageCertificates "CryptGetMessageCertificates" int, intptr, int, var, int
; res = CryptGetMessageCertificates(dwMsgAndCertEncodingType, hCryptProv, dwFlags, pbSignedBlob, cbSignedBlob)
; dwMsgAndCertEncodingType : DWORD -> "int"
; hCryptProv : HCRYPTPROV_LEGACY optional -> "intptr"
; dwFlags : DWORD -> "int"
; pbSignedBlob : BYTE* -> "var"
; cbSignedBlob : DWORD -> "int"
; ※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 (
	crypt32 = windows.NewLazySystemDLL("CRYPT32.dll")
	procCryptGetMessageCertificates = crypt32.NewProc("CryptGetMessageCertificates")
)

// dwMsgAndCertEncodingType (DWORD), hCryptProv (HCRYPTPROV_LEGACY optional), dwFlags (DWORD), pbSignedBlob (BYTE*), cbSignedBlob (DWORD)
r1, _, err := procCryptGetMessageCertificates.Call(
	uintptr(dwMsgAndCertEncodingType),
	uintptr(hCryptProv),
	uintptr(dwFlags),
	uintptr(pbSignedBlob),
	uintptr(cbSignedBlob),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HCERTSTORE

function CryptGetMessageCertificates(
  dwMsgAndCertEncodingType: DWORD;   // DWORD
  hCryptProv: NativeUInt;   // HCRYPTPROV_LEGACY optional
  dwFlags: DWORD;   // DWORD
  pbSignedBlob: Pointer;   // BYTE*
  cbSignedBlob: DWORD   // DWORD
): THandle; stdcall;
  external 'CRYPT32.dll' name 'CryptGetMessageCertificates';

result := DllCall("CRYPT32\CryptGetMessageCertificates"
    , "UInt", dwMsgAndCertEncodingType   ; DWORD
    , "UPtr", hCryptProv   ; HCRYPTPROV_LEGACY optional
    , "UInt", dwFlags   ; DWORD
    , "Ptr", pbSignedBlob   ; BYTE*
    , "UInt", cbSignedBlob   ; DWORD
    , "Ptr")   ; return: HCERTSTORE

●CryptGetMessageCertificates(dwMsgAndCertEncodingType, hCryptProv, dwFlags, pbSignedBlob, cbSignedBlob) = DLL("CRYPT32.dll", "void* CryptGetMessageCertificates(dword, int, dword, void*, dword)")
# 呼び出し: CryptGetMessageCertificates(dwMsgAndCertEncodingType, hCryptProv, dwFlags, pbSignedBlob, cbSignedBlob)
# dwMsgAndCertEncodingType : DWORD -> "dword"
# hCryptProv : HCRYPTPROV_LEGACY optional -> "int"
# dwFlags : DWORD -> "dword"
# pbSignedBlob : BYTE* -> "void*"
# cbSignedBlob : DWORD -> "dword"
# 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)。