CryptSetProviderW

// ADVAPI32.dll  (Unicode / -W)
#include <windows.h>

BOOL CryptSetProviderW(
    LPCWSTR pszProvName,
    DWORD dwProvType
);

<DllImport("ADVAPI32.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CryptSetProviderW(
    <MarshalAs(UnmanagedType.LPWStr)> pszProvName As String,   ' LPCWSTR
    dwProvType As UInteger   ' DWORD
) As Boolean
End Function

' pszProvName : LPCWSTR
' dwProvType : DWORD
Declare PtrSafe Function CryptSetProviderW Lib "advapi32" ( _
    ByVal pszProvName As LongPtr, _
    ByVal dwProvType As Long) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

CryptSetProviderW = ctypes.windll.advapi32.CryptSetProviderW
CryptSetProviderW.restype = wintypes.BOOL
CryptSetProviderW.argtypes = [
    wintypes.LPCWSTR,  # pszProvName : LPCWSTR
    wintypes.DWORD,  # dwProvType : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ADVAPI32.dll')
CryptSetProviderW = Fiddle::Function.new(
  lib['CryptSetProviderW'],
  [
    Fiddle::TYPE_VOIDP,  # pszProvName : LPCWSTR
    -Fiddle::TYPE_INT,  # dwProvType : DWORD
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "advapi32")]
extern "system" {
    fn CryptSetProviderW(
        pszProvName: *const u16,  // LPCWSTR
        dwProvType: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("ADVAPI32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern bool CryptSetProviderW([MarshalAs(UnmanagedType.LPWStr)] string pszProvName, uint dwProvType);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ADVAPI32_CryptSetProviderW' -Namespace Win32 -PassThru
# $api::CryptSetProviderW(pszProvName, dwProvType)

#uselib "ADVAPI32.dll"
#func global CryptSetProviderW "CryptSetProviderW" wptr, wptr
; CryptSetProviderW pszProvName, dwProvType   ; 戻り値は stat
; pszProvName : LPCWSTR -> "wptr"
; dwProvType : DWORD -> "wptr"
; ※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 "ADVAPI32.dll"
#cfunc global CryptSetProviderW "CryptSetProviderW" wstr, int
; res = CryptSetProviderW(pszProvName, dwProvType)
; pszProvName : LPCWSTR -> "wstr"
; dwProvType : DWORD -> "int"

; BOOL CryptSetProviderW(LPCWSTR pszProvName, DWORD dwProvType)
#uselib "ADVAPI32.dll"
#cfunc global CryptSetProviderW "CryptSetProviderW" wstr, int
; res = CryptSetProviderW(pszProvName, dwProvType)
; pszProvName : LPCWSTR -> "wstr"
; dwProvType : DWORD -> "int"

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

var (
	advapi32 = windows.NewLazySystemDLL("ADVAPI32.dll")
	procCryptSetProviderW = advapi32.NewProc("CryptSetProviderW")
)

// pszProvName (LPCWSTR), dwProvType (DWORD)
r1, _, err := procCryptSetProviderW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszProvName))),
	uintptr(dwProvType),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CryptSetProviderW(
  pszProvName: PWideChar;   // LPCWSTR
  dwProvType: DWORD   // DWORD
): BOOL; stdcall;
  external 'ADVAPI32.dll' name 'CryptSetProviderW';

result := DllCall("ADVAPI32\CryptSetProviderW"
    , "WStr", pszProvName   ; LPCWSTR
    , "UInt", dwProvType   ; DWORD
    , "Int")   ; return: BOOL

●CryptSetProviderW(pszProvName, dwProvType) = DLL("ADVAPI32.dll", "bool CryptSetProviderW(char*, dword)")
# 呼び出し: CryptSetProviderW(pszProvName, dwProvType)
# pszProvName : LPCWSTR -> "char*"
# dwProvType : 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。