DRMEncode

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

HRESULT DRMEncode(
    LPWSTR wszAlgID,
    DWORD uDataLen,
    BYTE* pbDecodedData,
    DWORD* puEncodedStringLen,
    LPWSTR wszEncodedString   // optional
);

<DllImport("msdrm.dll", ExactSpelling:=True)>
Public Shared Function DRMEncode(
    <MarshalAs(UnmanagedType.LPWStr)> wszAlgID As String,   ' LPWSTR
    uDataLen As UInteger,   ' DWORD
    pbDecodedData As IntPtr,   ' BYTE* in/out
    ByRef puEncodedStringLen As UInteger,   ' DWORD* in/out
    <MarshalAs(UnmanagedType.LPWStr)> wszEncodedString As System.Text.StringBuilder   ' LPWSTR optional, out
) As Integer
End Function

' wszAlgID : LPWSTR
' uDataLen : DWORD
' pbDecodedData : BYTE* in/out
' puEncodedStringLen : DWORD* in/out
' wszEncodedString : LPWSTR optional, out
Declare PtrSafe Function DRMEncode Lib "msdrm" ( _
    ByVal wszAlgID As LongPtr, _
    ByVal uDataLen As Long, _
    ByVal pbDecodedData As LongPtr, _
    ByRef puEncodedStringLen As Long, _
    ByVal wszEncodedString 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

DRMEncode = ctypes.windll.msdrm.DRMEncode
DRMEncode.restype = ctypes.c_int
DRMEncode.argtypes = [
    wintypes.LPCWSTR,  # wszAlgID : LPWSTR
    wintypes.DWORD,  # uDataLen : DWORD
    ctypes.POINTER(ctypes.c_ubyte),  # pbDecodedData : BYTE* in/out
    ctypes.POINTER(wintypes.DWORD),  # puEncodedStringLen : DWORD* in/out
    wintypes.LPWSTR,  # wszEncodedString : LPWSTR optional, out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('msdrm.dll')
DRMEncode = Fiddle::Function.new(
  lib['DRMEncode'],
  [
    Fiddle::TYPE_VOIDP,  # wszAlgID : LPWSTR
    -Fiddle::TYPE_INT,  # uDataLen : DWORD
    Fiddle::TYPE_VOIDP,  # pbDecodedData : BYTE* in/out
    Fiddle::TYPE_VOIDP,  # puEncodedStringLen : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # wszEncodedString : LPWSTR optional, out
  ],
  Fiddle::TYPE_INT)

#[link(name = "msdrm")]
extern "system" {
    fn DRMEncode(
        wszAlgID: *mut u16,  // LPWSTR
        uDataLen: u32,  // DWORD
        pbDecodedData: *mut u8,  // BYTE* in/out
        puEncodedStringLen: *mut u32,  // DWORD* in/out
        wszEncodedString: *mut u16  // LPWSTR optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("msdrm.dll")]
public static extern int DRMEncode([MarshalAs(UnmanagedType.LPWStr)] string wszAlgID, uint uDataLen, IntPtr pbDecodedData, ref uint puEncodedStringLen, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder wszEncodedString);
"@
$api = Add-Type -MemberDefinition $sig -Name 'msdrm_DRMEncode' -Namespace Win32 -PassThru
# $api::DRMEncode(wszAlgID, uDataLen, pbDecodedData, puEncodedStringLen, wszEncodedString)

#uselib "msdrm.dll"
#func global DRMEncode "DRMEncode" sptr, sptr, sptr, sptr, sptr
; DRMEncode wszAlgID, uDataLen, varptr(pbDecodedData), varptr(puEncodedStringLen), varptr(wszEncodedString)   ; 戻り値は stat
; wszAlgID : LPWSTR -> "sptr"
; uDataLen : DWORD -> "sptr"
; pbDecodedData : BYTE* in/out -> "sptr"
; puEncodedStringLen : DWORD* in/out -> "sptr"
; wszEncodedString : LPWSTR optional, 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 "msdrm.dll"
#cfunc global DRMEncode "DRMEncode" wstr, int, var, var, var
; res = DRMEncode(wszAlgID, uDataLen, pbDecodedData, puEncodedStringLen, wszEncodedString)
; wszAlgID : LPWSTR -> "wstr"
; uDataLen : DWORD -> "int"
; pbDecodedData : BYTE* in/out -> "var"
; puEncodedStringLen : DWORD* in/out -> "var"
; wszEncodedString : LPWSTR optional, out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; HRESULT DRMEncode(LPWSTR wszAlgID, DWORD uDataLen, BYTE* pbDecodedData, DWORD* puEncodedStringLen, LPWSTR wszEncodedString)
#uselib "msdrm.dll"
#cfunc global DRMEncode "DRMEncode" wstr, int, var, var, var
; res = DRMEncode(wszAlgID, uDataLen, pbDecodedData, puEncodedStringLen, wszEncodedString)
; wszAlgID : LPWSTR -> "wstr"
; uDataLen : DWORD -> "int"
; pbDecodedData : BYTE* in/out -> "var"
; puEncodedStringLen : DWORD* in/out -> "var"
; wszEncodedString : LPWSTR optional, out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

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

var (
	msdrm = windows.NewLazySystemDLL("msdrm.dll")
	procDRMEncode = msdrm.NewProc("DRMEncode")
)

// wszAlgID (LPWSTR), uDataLen (DWORD), pbDecodedData (BYTE* in/out), puEncodedStringLen (DWORD* in/out), wszEncodedString (LPWSTR optional, out)
r1, _, err := procDRMEncode.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(wszAlgID))),
	uintptr(uDataLen),
	uintptr(pbDecodedData),
	uintptr(puEncodedStringLen),
	uintptr(wszEncodedString),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function DRMEncode(
  wszAlgID: PWideChar;   // LPWSTR
  uDataLen: DWORD;   // DWORD
  pbDecodedData: Pointer;   // BYTE* in/out
  puEncodedStringLen: Pointer;   // DWORD* in/out
  wszEncodedString: PWideChar   // LPWSTR optional, out
): Integer; stdcall;
  external 'msdrm.dll' name 'DRMEncode';

result := DllCall("msdrm\DRMEncode"
    , "WStr", wszAlgID   ; LPWSTR
    , "UInt", uDataLen   ; DWORD
    , "Ptr", pbDecodedData   ; BYTE* in/out
    , "Ptr", puEncodedStringLen   ; DWORD* in/out
    , "Ptr", wszEncodedString   ; LPWSTR optional, out
    , "Int")   ; return: HRESULT

●DRMEncode(wszAlgID, uDataLen, pbDecodedData, puEncodedStringLen, wszEncodedString) = DLL("msdrm.dll", "int DRMEncode(char*, dword, void*, void*, char*)")
# 呼び出し: DRMEncode(wszAlgID, uDataLen, pbDecodedData, puEncodedStringLen, wszEncodedString)
# wszAlgID : LPWSTR -> "char*"
# uDataLen : DWORD -> "dword"
# pbDecodedData : BYTE* in/out -> "void*"
# puEncodedStringLen : DWORD* in/out -> "void*"
# wszEncodedString : LPWSTR optional, out -> "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)。