CryptUnregisterOIDFunction

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

BOOL CryptUnregisterOIDFunction(
    DWORD dwEncodingType,
    LPCSTR pszFuncName,
    LPCSTR pszOID
);

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

' dwEncodingType : DWORD
' pszFuncName : LPCSTR
' pszOID : LPCSTR
Declare PtrSafe Function CryptUnregisterOIDFunction Lib "crypt32" ( _
    ByVal dwEncodingType As Long, _
    ByVal pszFuncName As String, _
    ByVal pszOID As String) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

CryptUnregisterOIDFunction = ctypes.windll.crypt32.CryptUnregisterOIDFunction
CryptUnregisterOIDFunction.restype = wintypes.BOOL
CryptUnregisterOIDFunction.argtypes = [
    wintypes.DWORD,  # dwEncodingType : DWORD
    wintypes.LPCSTR,  # pszFuncName : LPCSTR
    wintypes.LPCSTR,  # pszOID : LPCSTR
]

require 'fiddle'
require 'fiddle/import'

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

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

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("CRYPT32.dll")]
public static extern bool CryptUnregisterOIDFunction(uint dwEncodingType, [MarshalAs(UnmanagedType.LPStr)] string pszFuncName, [MarshalAs(UnmanagedType.LPStr)] string pszOID);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CRYPT32_CryptUnregisterOIDFunction' -Namespace Win32 -PassThru
# $api::CryptUnregisterOIDFunction(dwEncodingType, pszFuncName, pszOID)

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

; BOOL CryptUnregisterOIDFunction(DWORD dwEncodingType, LPCSTR pszFuncName, LPCSTR pszOID)
#uselib "CRYPT32.dll"
#cfunc global CryptUnregisterOIDFunction "CryptUnregisterOIDFunction" int, str, str
; res = CryptUnregisterOIDFunction(dwEncodingType, pszFuncName, pszOID)
; dwEncodingType : DWORD -> "int"
; pszFuncName : LPCSTR -> "str"
; pszOID : LPCSTR -> "str"

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

var (
	crypt32 = windows.NewLazySystemDLL("CRYPT32.dll")
	procCryptUnregisterOIDFunction = crypt32.NewProc("CryptUnregisterOIDFunction")
)

// dwEncodingType (DWORD), pszFuncName (LPCSTR), pszOID (LPCSTR)
r1, _, err := procCryptUnregisterOIDFunction.Call(
	uintptr(dwEncodingType),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pszFuncName))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pszOID))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CryptUnregisterOIDFunction(
  dwEncodingType: DWORD;   // DWORD
  pszFuncName: PAnsiChar;   // LPCSTR
  pszOID: PAnsiChar   // LPCSTR
): BOOL; stdcall;
  external 'CRYPT32.dll' name 'CryptUnregisterOIDFunction';

result := DllCall("CRYPT32\CryptUnregisterOIDFunction"
    , "UInt", dwEncodingType   ; DWORD
    , "AStr", pszFuncName   ; LPCSTR
    , "AStr", pszOID   ; LPCSTR
    , "Int")   ; return: BOOL

●CryptUnregisterOIDFunction(dwEncodingType, pszFuncName, pszOID) = DLL("CRYPT32.dll", "bool CryptUnregisterOIDFunction(dword, char*, char*)")
# 呼び出し: CryptUnregisterOIDFunction(dwEncodingType, pszFuncName, pszOID)
# dwEncodingType : DWORD -> "dword"
# pszFuncName : LPCSTR -> "char*"
# pszOID : LPCSTR -> "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)。