CryptInitOIDFunctionSet

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

void* CryptInitOIDFunctionSet(
    LPCSTR pszFuncName,
    DWORD dwFlags
);

<DllImport("CRYPT32.dll", ExactSpelling:=True)>
Public Shared Function CryptInitOIDFunctionSet(
    <MarshalAs(UnmanagedType.LPStr)> pszFuncName As String,   ' LPCSTR
    dwFlags As UInteger   ' DWORD
) As IntPtr
End Function

' pszFuncName : LPCSTR
' dwFlags : DWORD
Declare PtrSafe Function CryptInitOIDFunctionSet Lib "crypt32" ( _
    ByVal pszFuncName As String, _
    ByVal dwFlags 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

CryptInitOIDFunctionSet = ctypes.windll.crypt32.CryptInitOIDFunctionSet
CryptInitOIDFunctionSet.restype = ctypes.c_void_p
CryptInitOIDFunctionSet.argtypes = [
    wintypes.LPCSTR,  # pszFuncName : LPCSTR
    wintypes.DWORD,  # dwFlags : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CRYPT32.dll')
CryptInitOIDFunctionSet = Fiddle::Function.new(
  lib['CryptInitOIDFunctionSet'],
  [
    Fiddle::TYPE_VOIDP,  # pszFuncName : LPCSTR
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "crypt32")]
extern "system" {
    fn CryptInitOIDFunctionSet(
        pszFuncName: *const u8,  // LPCSTR
        dwFlags: u32  // DWORD
    ) -> *mut ();
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("CRYPT32.dll")]
public static extern IntPtr CryptInitOIDFunctionSet([MarshalAs(UnmanagedType.LPStr)] string pszFuncName, uint dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CRYPT32_CryptInitOIDFunctionSet' -Namespace Win32 -PassThru
# $api::CryptInitOIDFunctionSet(pszFuncName, dwFlags)

#uselib "CRYPT32.dll"
#func global CryptInitOIDFunctionSet "CryptInitOIDFunctionSet" sptr, sptr
; CryptInitOIDFunctionSet pszFuncName, dwFlags   ; 戻り値は stat
; pszFuncName : LPCSTR -> "sptr"
; dwFlags : 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 CryptInitOIDFunctionSet "CryptInitOIDFunctionSet" str, int
; res = CryptInitOIDFunctionSet(pszFuncName, dwFlags)
; pszFuncName : LPCSTR -> "str"
; dwFlags : DWORD -> "int"

; void* CryptInitOIDFunctionSet(LPCSTR pszFuncName, DWORD dwFlags)
#uselib "CRYPT32.dll"
#cfunc global CryptInitOIDFunctionSet "CryptInitOIDFunctionSet" str, int
; res = CryptInitOIDFunctionSet(pszFuncName, dwFlags)
; pszFuncName : LPCSTR -> "str"
; dwFlags : DWORD -> "int"

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

var (
	crypt32 = windows.NewLazySystemDLL("CRYPT32.dll")
	procCryptInitOIDFunctionSet = crypt32.NewProc("CryptInitOIDFunctionSet")
)

// pszFuncName (LPCSTR), dwFlags (DWORD)
r1, _, err := procCryptInitOIDFunctionSet.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pszFuncName))),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void*

function CryptInitOIDFunctionSet(
  pszFuncName: PAnsiChar;   // LPCSTR
  dwFlags: DWORD   // DWORD
): Pointer; stdcall;
  external 'CRYPT32.dll' name 'CryptInitOIDFunctionSet';

result := DllCall("CRYPT32\CryptInitOIDFunctionSet"
    , "AStr", pszFuncName   ; LPCSTR
    , "UInt", dwFlags   ; DWORD
    , "Ptr")   ; return: void*

●CryptInitOIDFunctionSet(pszFuncName, dwFlags) = DLL("CRYPT32.dll", "void* CryptInitOIDFunctionSet(char*, dword)")
# 呼び出し: CryptInitOIDFunctionSet(pszFuncName, dwFlags)
# pszFuncName : LPCSTR -> "char*"
# dwFlags : 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)。