MFGetContentProtectionSystemCLSID

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

HRESULT MFGetContentProtectionSystemCLSID(
    const GUID* guidProtectionSystemID,
    GUID* pclsid
);

<DllImport("MFPlat.dll", ExactSpelling:=True)>
Public Shared Function MFGetContentProtectionSystemCLSID(
    ByRef guidProtectionSystemID As Guid,   ' GUID*
    <Out> ByRef pclsid As Guid   ' GUID* out
) As Integer
End Function

' guidProtectionSystemID : GUID*
' pclsid : GUID* out
Declare PtrSafe Function MFGetContentProtectionSystemCLSID Lib "mfplat" ( _
    ByVal guidProtectionSystemID As LongPtr, _
    ByVal pclsid 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

MFGetContentProtectionSystemCLSID = ctypes.windll.mfplat.MFGetContentProtectionSystemCLSID
MFGetContentProtectionSystemCLSID.restype = ctypes.c_int
MFGetContentProtectionSystemCLSID.argtypes = [
    ctypes.c_void_p,  # guidProtectionSystemID : GUID*
    ctypes.c_void_p,  # pclsid : GUID* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MFPlat.dll')
MFGetContentProtectionSystemCLSID = Fiddle::Function.new(
  lib['MFGetContentProtectionSystemCLSID'],
  [
    Fiddle::TYPE_VOIDP,  # guidProtectionSystemID : GUID*
    Fiddle::TYPE_VOIDP,  # pclsid : GUID* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mfplat")]
extern "system" {
    fn MFGetContentProtectionSystemCLSID(
        guidProtectionSystemID: *const GUID,  // GUID*
        pclsid: *mut GUID  // GUID* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MFPlat.dll")]
public static extern int MFGetContentProtectionSystemCLSID(ref Guid guidProtectionSystemID, out Guid pclsid);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MFPlat_MFGetContentProtectionSystemCLSID' -Namespace Win32 -PassThru
# $api::MFGetContentProtectionSystemCLSID(guidProtectionSystemID, pclsid)

#uselib "MFPlat.dll"
#func global MFGetContentProtectionSystemCLSID "MFGetContentProtectionSystemCLSID" sptr, sptr
; MFGetContentProtectionSystemCLSID varptr(guidProtectionSystemID), varptr(pclsid)   ; 戻り値は stat
; guidProtectionSystemID : GUID* -> "sptr"
; pclsid : GUID* 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 "MFPlat.dll"
#cfunc global MFGetContentProtectionSystemCLSID "MFGetContentProtectionSystemCLSID" var, var
; res = MFGetContentProtectionSystemCLSID(guidProtectionSystemID, pclsid)
; guidProtectionSystemID : GUID* -> "var"
; pclsid : GUID* 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 MFGetContentProtectionSystemCLSID(GUID* guidProtectionSystemID, GUID* pclsid)
#uselib "MFPlat.dll"
#cfunc global MFGetContentProtectionSystemCLSID "MFGetContentProtectionSystemCLSID" var, var
; res = MFGetContentProtectionSystemCLSID(guidProtectionSystemID, pclsid)
; guidProtectionSystemID : GUID* -> "var"
; pclsid : GUID* 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 (
	mfplat = windows.NewLazySystemDLL("MFPlat.dll")
	procMFGetContentProtectionSystemCLSID = mfplat.NewProc("MFGetContentProtectionSystemCLSID")
)

// guidProtectionSystemID (GUID*), pclsid (GUID* out)
r1, _, err := procMFGetContentProtectionSystemCLSID.Call(
	uintptr(guidProtectionSystemID),
	uintptr(pclsid),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function MFGetContentProtectionSystemCLSID(
  guidProtectionSystemID: PGUID;   // GUID*
  pclsid: PGUID   // GUID* out
): Integer; stdcall;
  external 'MFPlat.dll' name 'MFGetContentProtectionSystemCLSID';

result := DllCall("MFPlat\MFGetContentProtectionSystemCLSID"
    , "Ptr", guidProtectionSystemID   ; GUID*
    , "Ptr", pclsid   ; GUID* out
    , "Int")   ; return: HRESULT

●MFGetContentProtectionSystemCLSID(guidProtectionSystemID, pclsid) = DLL("MFPlat.dll", "int MFGetContentProtectionSystemCLSID(void*, void*)")
# 呼び出し: MFGetContentProtectionSystemCLSID(guidProtectionSystemID, pclsid)
# guidProtectionSystemID : GUID* -> "void*"
# pclsid : GUID* out -> "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)。