CryptGetOIDFunctionAddress

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

BOOL CryptGetOIDFunctionAddress(
    void* hFuncSet,
    DWORD dwEncodingType,
    LPCSTR pszOID,
    DWORD dwFlags,
    void** ppvFuncAddr,
    void** phFuncAddr
);

<DllImport("CRYPT32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CryptGetOIDFunctionAddress(
    hFuncSet As IntPtr,   ' void*
    dwEncodingType As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPStr)> pszOID As String,   ' LPCSTR
    dwFlags As UInteger,   ' DWORD
    ppvFuncAddr As IntPtr,   ' void** out
    phFuncAddr As IntPtr   ' void** out
) As Boolean
End Function

' hFuncSet : void*
' dwEncodingType : DWORD
' pszOID : LPCSTR
' dwFlags : DWORD
' ppvFuncAddr : void** out
' phFuncAddr : void** out
Declare PtrSafe Function CryptGetOIDFunctionAddress Lib "crypt32" ( _
    ByVal hFuncSet As LongPtr, _
    ByVal dwEncodingType As Long, _
    ByVal pszOID As String, _
    ByVal dwFlags As Long, _
    ByVal ppvFuncAddr As LongPtr, _
    ByVal phFuncAddr 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

CryptGetOIDFunctionAddress = ctypes.windll.crypt32.CryptGetOIDFunctionAddress
CryptGetOIDFunctionAddress.restype = wintypes.BOOL
CryptGetOIDFunctionAddress.argtypes = [
    ctypes.POINTER(None),  # hFuncSet : void*
    wintypes.DWORD,  # dwEncodingType : DWORD
    wintypes.LPCSTR,  # pszOID : LPCSTR
    wintypes.DWORD,  # dwFlags : DWORD
    ctypes.c_void_p,  # ppvFuncAddr : void** out
    ctypes.c_void_p,  # phFuncAddr : void** out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CRYPT32.dll')
CryptGetOIDFunctionAddress = Fiddle::Function.new(
  lib['CryptGetOIDFunctionAddress'],
  [
    Fiddle::TYPE_VOIDP,  # hFuncSet : void*
    -Fiddle::TYPE_INT,  # dwEncodingType : DWORD
    Fiddle::TYPE_VOIDP,  # pszOID : LPCSTR
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
    Fiddle::TYPE_VOIDP,  # ppvFuncAddr : void** out
    Fiddle::TYPE_VOIDP,  # phFuncAddr : void** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "crypt32")]
extern "system" {
    fn CryptGetOIDFunctionAddress(
        hFuncSet: *mut (),  // void*
        dwEncodingType: u32,  // DWORD
        pszOID: *const u8,  // LPCSTR
        dwFlags: u32,  // DWORD
        ppvFuncAddr: *mut *mut (),  // void** out
        phFuncAddr: *mut *mut ()  // void** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("CRYPT32.dll", SetLastError = true)]
public static extern bool CryptGetOIDFunctionAddress(IntPtr hFuncSet, uint dwEncodingType, [MarshalAs(UnmanagedType.LPStr)] string pszOID, uint dwFlags, IntPtr ppvFuncAddr, IntPtr phFuncAddr);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CRYPT32_CryptGetOIDFunctionAddress' -Namespace Win32 -PassThru
# $api::CryptGetOIDFunctionAddress(hFuncSet, dwEncodingType, pszOID, dwFlags, ppvFuncAddr, phFuncAddr)

#uselib "CRYPT32.dll"
#func global CryptGetOIDFunctionAddress "CryptGetOIDFunctionAddress" sptr, sptr, sptr, sptr, sptr, sptr
; CryptGetOIDFunctionAddress hFuncSet, dwEncodingType, pszOID, dwFlags, ppvFuncAddr, phFuncAddr   ; 戻り値は stat
; hFuncSet : void* -> "sptr"
; dwEncodingType : DWORD -> "sptr"
; pszOID : LPCSTR -> "sptr"
; dwFlags : DWORD -> "sptr"
; ppvFuncAddr : void** out -> "sptr"
; phFuncAddr : void** 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 "CRYPT32.dll"
#cfunc global CryptGetOIDFunctionAddress "CryptGetOIDFunctionAddress" sptr, int, str, int, sptr, sptr
; res = CryptGetOIDFunctionAddress(hFuncSet, dwEncodingType, pszOID, dwFlags, ppvFuncAddr, phFuncAddr)
; hFuncSet : void* -> "sptr"
; dwEncodingType : DWORD -> "int"
; pszOID : LPCSTR -> "str"
; dwFlags : DWORD -> "int"
; ppvFuncAddr : void** out -> "sptr"
; phFuncAddr : void** out -> "sptr"

; BOOL CryptGetOIDFunctionAddress(void* hFuncSet, DWORD dwEncodingType, LPCSTR pszOID, DWORD dwFlags, void** ppvFuncAddr, void** phFuncAddr)
#uselib "CRYPT32.dll"
#cfunc global CryptGetOIDFunctionAddress "CryptGetOIDFunctionAddress" intptr, int, str, int, intptr, intptr
; res = CryptGetOIDFunctionAddress(hFuncSet, dwEncodingType, pszOID, dwFlags, ppvFuncAddr, phFuncAddr)
; hFuncSet : void* -> "intptr"
; dwEncodingType : DWORD -> "int"
; pszOID : LPCSTR -> "str"
; dwFlags : DWORD -> "int"
; ppvFuncAddr : void** out -> "intptr"
; phFuncAddr : void** out -> "intptr"

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

var (
	crypt32 = windows.NewLazySystemDLL("CRYPT32.dll")
	procCryptGetOIDFunctionAddress = crypt32.NewProc("CryptGetOIDFunctionAddress")
)

// hFuncSet (void*), dwEncodingType (DWORD), pszOID (LPCSTR), dwFlags (DWORD), ppvFuncAddr (void** out), phFuncAddr (void** out)
r1, _, err := procCryptGetOIDFunctionAddress.Call(
	uintptr(hFuncSet),
	uintptr(dwEncodingType),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pszOID))),
	uintptr(dwFlags),
	uintptr(ppvFuncAddr),
	uintptr(phFuncAddr),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CryptGetOIDFunctionAddress(
  hFuncSet: Pointer;   // void*
  dwEncodingType: DWORD;   // DWORD
  pszOID: PAnsiChar;   // LPCSTR
  dwFlags: DWORD;   // DWORD
  ppvFuncAddr: Pointer;   // void** out
  phFuncAddr: Pointer   // void** out
): BOOL; stdcall;
  external 'CRYPT32.dll' name 'CryptGetOIDFunctionAddress';

result := DllCall("CRYPT32\CryptGetOIDFunctionAddress"
    , "Ptr", hFuncSet   ; void*
    , "UInt", dwEncodingType   ; DWORD
    , "AStr", pszOID   ; LPCSTR
    , "UInt", dwFlags   ; DWORD
    , "Ptr", ppvFuncAddr   ; void** out
    , "Ptr", phFuncAddr   ; void** out
    , "Int")   ; return: BOOL

●CryptGetOIDFunctionAddress(hFuncSet, dwEncodingType, pszOID, dwFlags, ppvFuncAddr, phFuncAddr) = DLL("CRYPT32.dll", "bool CryptGetOIDFunctionAddress(void*, dword, char*, dword, void*, void*)")
# 呼び出し: CryptGetOIDFunctionAddress(hFuncSet, dwEncodingType, pszOID, dwFlags, ppvFuncAddr, phFuncAddr)
# hFuncSet : void* -> "void*"
# dwEncodingType : DWORD -> "dword"
# pszOID : LPCSTR -> "char*"
# dwFlags : DWORD -> "dword"
# ppvFuncAddr : void** out -> "void*"
# phFuncAddr : void** 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)。