CryptUninstallDefaultContext

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

BOOL CryptUninstallDefaultContext(
    void* hDefaultContext,   // optional
    DWORD dwFlags,
    void* pvReserved   // optional
);

<DllImport("CRYPT32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CryptUninstallDefaultContext(
    hDefaultContext As IntPtr,   ' void* optional
    dwFlags As UInteger,   ' DWORD
    pvReserved As IntPtr   ' void* optional
) As Boolean
End Function

' hDefaultContext : void* optional
' dwFlags : DWORD
' pvReserved : void* optional
Declare PtrSafe Function CryptUninstallDefaultContext Lib "crypt32" ( _
    ByVal hDefaultContext As LongPtr, _
    ByVal dwFlags As Long, _
    ByVal pvReserved 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

CryptUninstallDefaultContext = ctypes.windll.crypt32.CryptUninstallDefaultContext
CryptUninstallDefaultContext.restype = wintypes.BOOL
CryptUninstallDefaultContext.argtypes = [
    ctypes.POINTER(None),  # hDefaultContext : void* optional
    wintypes.DWORD,  # dwFlags : DWORD
    ctypes.POINTER(None),  # pvReserved : void* optional
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CRYPT32.dll')
CryptUninstallDefaultContext = Fiddle::Function.new(
  lib['CryptUninstallDefaultContext'],
  [
    Fiddle::TYPE_VOIDP,  # hDefaultContext : void* optional
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
    Fiddle::TYPE_VOIDP,  # pvReserved : void* optional
  ],
  Fiddle::TYPE_INT)

#[link(name = "crypt32")]
extern "system" {
    fn CryptUninstallDefaultContext(
        hDefaultContext: *mut (),  // void* optional
        dwFlags: u32,  // DWORD
        pvReserved: *mut ()  // void* optional
    ) -> 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 CryptUninstallDefaultContext(IntPtr hDefaultContext, uint dwFlags, IntPtr pvReserved);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CRYPT32_CryptUninstallDefaultContext' -Namespace Win32 -PassThru
# $api::CryptUninstallDefaultContext(hDefaultContext, dwFlags, pvReserved)

#uselib "CRYPT32.dll"
#func global CryptUninstallDefaultContext "CryptUninstallDefaultContext" sptr, sptr, sptr
; CryptUninstallDefaultContext hDefaultContext, dwFlags, pvReserved   ; 戻り値は stat
; hDefaultContext : void* optional -> "sptr"
; dwFlags : DWORD -> "sptr"
; pvReserved : void* optional -> "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 CryptUninstallDefaultContext "CryptUninstallDefaultContext" sptr, int, sptr
; res = CryptUninstallDefaultContext(hDefaultContext, dwFlags, pvReserved)
; hDefaultContext : void* optional -> "sptr"
; dwFlags : DWORD -> "int"
; pvReserved : void* optional -> "sptr"

; BOOL CryptUninstallDefaultContext(void* hDefaultContext, DWORD dwFlags, void* pvReserved)
#uselib "CRYPT32.dll"
#cfunc global CryptUninstallDefaultContext "CryptUninstallDefaultContext" intptr, int, intptr
; res = CryptUninstallDefaultContext(hDefaultContext, dwFlags, pvReserved)
; hDefaultContext : void* optional -> "intptr"
; dwFlags : DWORD -> "int"
; pvReserved : void* optional -> "intptr"

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

var (
	crypt32 = windows.NewLazySystemDLL("CRYPT32.dll")
	procCryptUninstallDefaultContext = crypt32.NewProc("CryptUninstallDefaultContext")
)

// hDefaultContext (void* optional), dwFlags (DWORD), pvReserved (void* optional)
r1, _, err := procCryptUninstallDefaultContext.Call(
	uintptr(hDefaultContext),
	uintptr(dwFlags),
	uintptr(pvReserved),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CryptUninstallDefaultContext(
  hDefaultContext: Pointer;   // void* optional
  dwFlags: DWORD;   // DWORD
  pvReserved: Pointer   // void* optional
): BOOL; stdcall;
  external 'CRYPT32.dll' name 'CryptUninstallDefaultContext';

result := DllCall("CRYPT32\CryptUninstallDefaultContext"
    , "Ptr", hDefaultContext   ; void* optional
    , "UInt", dwFlags   ; DWORD
    , "Ptr", pvReserved   ; void* optional
    , "Int")   ; return: BOOL

●CryptUninstallDefaultContext(hDefaultContext, dwFlags, pvReserved) = DLL("CRYPT32.dll", "bool CryptUninstallDefaultContext(void*, dword, void*)")
# 呼び出し: CryptUninstallDefaultContext(hDefaultContext, dwFlags, pvReserved)
# hDefaultContext : void* optional -> "void*"
# dwFlags : DWORD -> "dword"
# pvReserved : void* optional -> "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)。